Ndị na-ahụ maka ATERA DDR2 SDRAM

Ozi dị mkpa

Ndị na-ahụ maka Altera® DDR, DDR2, na DDR3 SDRAM nwere ALTMEMPHY IP na-enye oghere dị mfe maka DDR, DDR2, na DDR3 SDRAM. AlTMEMPHY megafunction bụ interface n'etiti ihe njikwa ebe nchekwa na ngwaọrụ ebe nchekwa, ma na-arụ ọrụ ịgụ na ide na ebe nchekwa. Ndị na-ahụ maka DDR, DDR2, na DDR3 SDRAM nwere ALTMEMPHY IP na-arụ ọrụ na njikọ Altera ALTMEMPHY megafunction.
Ndị na-ahụ maka DDR na DDR2 SDRAM nwere ALTMEMPHY IP na ALTMEMPHY megafunction na-enye ọnụọgụ DDR2 SDRAM zuru oke ma ọ bụ ọkara. Ndị na-ahụ maka DDR, DDR3, na DDR3 SDRAM nwere ALTMEMPHY IP na-enye njikwa arụmọrụ dị elu II (HPC II), nke na-enye arụmọrụ dị elu na njiri mara elu. Onyonyo 2-3 na-egosi eserese usoro-ọkwa gụnyere example elu-larịị file na DDR, DDR2, ma ọ bụ DDR3 SDRAM Controller nwere ALTMEMPHY IP na-emepụta maka gị.

Ọgụgụ 15–1. Eserese-Ọkwa Sistemu

Rịba ama na eserese 15–1:
(1) Mgbe ịhọrọ ngwa ngwa DLL Mpụga, a na-ewepụta loop-egbu oge (DLL) na mpụga megafunction ALTMEMPHY.

MegaWizard ™ Plug-In Manager na-ewepụta example elu-larịị file, nke gụnyere examponye ọkwọ ụgbọ ala, yana DDR, DDR2, ma ọ bụ DDR3 SDRAM onye njikwa arụmọrụ dị elu. Onye njikwa na-ewepụta ihe atụ nke ALTMEMPHY megafunction nke n'aka nke ya na-ewepụta loop-locked loop (PLL) na DLL. Ị nwekwara ike iwepụta DLL ozugbo na mpụga ALTMEMPHY megafunction iji kesaa DLL n'etiti ọtụtụ oge nke ALTMEMPHY megafunction. Ị nweghị ike ịkekọrịta PLL n'etiti ọtụtụ ihe atụ nke ALTMEMPHY megafunction, mana ị nwere ike kesaa ụfọdụ n'ime elekere PLL n'etiti ọtụtụ oge ndị a.

© 2012 Altera Corporation. Ikike niile echekwabara. ATERA, ARRIA, CYCLONE, HARDCOPY, MAX, MEGACORE, NIOS, QUARTUS na STRATIX okwu na akara bụ ụghalaahịa nke Altera Corporation ma debanye aha na US Patent and Trademark Office na na mba ndị ọzọ. Okwu ndị ọzọ niile na akara ngosi achọpụtara dị ka ụghalaahịa ma ọ bụ akara ọrụ bụ ihe onwunwe nke ndị ji ha dị ka akọwara na ya www.altera.com/common/legal.html. Altera nyere ikike ịrụ ọrụ nke ngwaahịa semiconductor ya na nkọwapụta dị ugbu a dịka akwụkwọ ikike ọkọlọtọ Altera siri dị, mana nwere ikike ịme mgbanwe na ngwaahịa na ọrụ ọ bụla n'oge ọ bụla na-enweghị ọkwa. Altera anaghị ewere ọrụ ọ bụla ma ọ bụ ụgwọ sitere na ngwa ma ọ bụ iji ozi, ngwaahịa, ma ọ bụ ọrụ akọwara n'ime ebe a belụsọ dị ka Altera kwenyesiri ike na ederede. A dụrụ ndị ahịa Altera ọdụ ka ha nweta ụdị nkọwa ngwaọrụ kachasị ọhụrụ tupu ha adabere na ozi ọ bụla ebipụtara yana tupu ịnye iwu maka ngwaahịa ma ọ bụ ọrụ.

The example elu-larịị file bụ atụmatụ na-arụ ọrụ nke ọma nke ị nwere ike ịmegharị, megharịa, na iji na ngwaike. The example driver bụ modul nwale onwe ya nke na-enye agụ ma dee iwu nye onye njikwa wee lelee data agụ iji mepụta ngafe ma ọ bụ daa, wee nwalee akara ngosi zuru oke.
AlTMEMPHY megafunction na-emepụta ụzọ data n'etiti ngwaọrụ ebe nchekwa na njikwa ebe nchekwa. Megafunction dị ka ngwaahịa kwụụrụ onwe ya ma ọ bụ enwere ike iji ya na njikwa ebe nchekwa dị elu nke Altera.
Mgbe ị na-eji ALTMEMPHY megafunction dị ka ngwaahịa kwụụrụ onwe ya, jiri ma omenala ma ọ bụ njikwa ndị ọzọ.

Maka atụmatụ ọhụrụ, Altera na-atụ aro ka iji interface ebe nchekwa mpụga dabere na UniPHY, dị ka DDR2 na DDR3 SDRAM njikwa nwere UniPHY, QDR II na QDR II+ SRAM njikwa nwere UniPHY, ma ọ bụ RLDRAM II njikwa nwere UniPHY.

Ozi mwepụta

Tebụl 15–1 na-enye ozi gbasara ntọhapụ nke DDR3 SDRAM Controller nwere ALTMEMPHY IP.

Tebụl 15–1. Ozi mwepụta

Ihe	Nkọwa
Ụdị	11.1
Ụbọchị mwepụta	Nọvemba 2011
Koodu ịtụ	IP-SDRAM/HPDDR (DDR SDRAM HPC) IP-SDRAM/HPDDR2 (DDR2 SDRAM HPC) IP-HPMCII (HPC II)
NJ ngwaahịa	00BE (DDR SDRAM) 00BF (DDR2 SDRAM) 00C2 (DDR3 SDRAM) 00CO (ALTMEMPHY Megafunction)
NJ onye na-ere ahịa	6AF7

Altera na-enyocha na ụdị sọftụwia Quartus® II dị ugbu a na-achịkọta ụdị mbụ nke ọrụ MegaCore ọ bụla. Ihe ndetu mwepụta ọba akwụkwọ MegaCore IP yana Errata na-akọ ihe ewepụrụ na nkwenye a. Altera anaghị enyocha mkpokọta yana ụdị ọrụ MegaCore tọrọ karịa otu ntọhapụ. Maka ozi gbasara okwu dị na DDR, DDR2, ma ọ bụ DDR3 SDRAM njikwa arụmọrụ dị elu yana ALTMEMPHY megafunction na otu ụdị Quartus II, rụtụ aka na ndetu mwepụta Quartus II Software.

Nkwado Ezinụlọ ngwaọrụ

Tebụl 15–2 na-akọwa ọkwa nkwado ngwaọrụ maka cores Altera IP.

Isiokwu 15–2. Ọkwa Nkwado Ngwaọrụ Altera IP Core

Ezinụlọ Ngwaọrụ FPGA	Ezinụlọ Ngwaọrụ HardCopy
Nkwado mbido-Ejikwa ụdị oge izizi maka ezinụlọ ngwaọrụ a kwadoro isi IP. Isi IP na-emezu ihe niile achọrọ arụ ọrụ, mana ọ ka nwere ike na-enyocha oge maka ezinụlọ ngwaọrụ. Enwere ike iji ya mee ihe na mmepụta ihe na-akpachapụ anya.	Mkpakọrịta HardCopy-A na-eji ụdị oge izizi enyocha isi IP maka ngwaọrụ ibe Hard Copy. Isi IP na-emezu ihe niile achọrọ arụ ọrụ, mana ọ ka nwere ike na-enyocha oge maka ezinụlọ ngwaọrụ HardCopy. Enwere ike iji ya mee ihe na mmepụta ihe na-akpachapụ anya.
Nkwado ikpeazụ- A na-enyocha isi IP site na ụdị oge ikpeazụ maka ezinụlọ ngwaọrụ a. Isi IP na-ezute ihe niile chọrọ ịrụ ọrụ na oge maka ezinụlọ ngwaọrụ ma nwee ike iji ya mee ihe n'ụdị mmepụta.	Nchịkọta HardCopy— A na-enyocha isi IP site na ụdị oge ikpeazụ maka ezinụlọ ngwaọrụ HardCopy. Isi IP na-ezute ihe niile chọrọ ịrụ ọrụ na oge maka ezinụlọ ngwaọrụ ma nwee ike iji ya mee ihe n'ụdị mmepụta.

Tebụl 15–3 na-egosi ọkwa nkwado nke DDR, DDR2, na DDR3 SDRAM Controllers nwere ALTMEMPHY IP maka ezinụlọ ngwaọrụ Altera.

Isiokwu 15–3. Nkwado Ezinụlọ ngwaọrụ

Ezinụlọ ngwaọrụ	Protocol
	DDR na DDR2	DDR3
Arria® GX	Ikpeazụ	Enweghị nkwado
Aria II GX	Ikpeazụ	Ikpeazụ
Cyclone® III	Ikpeazụ	Enweghị nkwado
Cyclone III LS	Ikpeazụ	Enweghị nkwado
Cyclone IV E	Ikpeazụ	Enweghị nkwado
Cyclone IV GX	Ikpeazụ	Enweghị nkwado
HardCopy II	Rụtụ aka na ihe dị ọhụrụ na ibe Altera IP nke Altera websaịtị.	Enweghị nkwado
Stratix® II	Ikpeazụ	Enweghị nkwado
Stratix II GX	Ikpeazụ	Enweghị nkwado
Ezinụlọ ngwaọrụ ndị ọzọ	Enweghị nkwado	Enweghị nkwado

Atụmatụ

ALTMEMPHY Mega ọrụ

Tebụl 15-4 na-achịkọta nkwado njirimara isi maka ALTMEMPHY megafunction.

Isiokwu 15–4. Nkwado atụmatụ ALTMEMPHY Megafunction

Njirimara	DDR na DDR2	DDR3
Nkwado maka Altera PHY Interface (AFI) na ngwaọrụ niile akwadoro.	✓	✓
Nhazi mbido akpaaka na-ewepụ mgbako oge data ọgụgụ gbagwojuru anya.	✓	✓
Voltage na ọnọdụ okpomọkụ (VT) na-ekwe nkwa ịrụ ọrụ kwụsiri ike maka ebe DDR, DDR2 na DDR3 SDRAM.	✓	✓
Ụzọ data nwere onwe nke na-eme njikọ na njikwa Altera ma ọ bụ onye njikwa nke atọ na-adabereghị na ụzọ oge dị oke mkpa.	✓	✓
interface ọnụ ahịa zuru oke	✓	—
interface nke ọkara ọnụego	✓	✓
Ihe ndezi paramita dị mfe iji	✓	✓

Na mgbakwunye, ALTMEMPHY megafunction na-akwado ihe DDR3 SDRAM na-enweghị ọkwa:

• The ALTMEMPHY megafunction na-akwado DDR3 SDRAM components na-enweghị ọkwa maka ngwaọrụ Arria II GX site na iji T-topology maka elekere, adreesị, na ụgbọ ala iwu:
  • Na-akwado ọtụtụ mgbawa ahọpụtara.
• DDR3 SDRAM PHY na-enweghị ọkwa fMAX bụ 400 MHz maka otu mgbawa ahọpụtara.
• Enweghị nkwado maka nkpuchi data (DM) maka ×4 DDR3 SDRAM DIMM ma ọ bụ akụrụngwa, yabụ họrọ Mba maka mbanye DM ntụtụ site na FPGA mgbe ị na-eji ngwaọrụ ×4.
• AlTMEMPHY megafunction na-akwado naanị oghere DDR3 SDRAM ọkara.

Onye njikwa arụmọrụ dị elu II

Tebụl 15–5 na-achịkọta nkwado njirimara isi maka DDR, DDR2, na DDR3 SDRAM HPC II.

Isiokwu 15–5. Nkwado atụmatụ (akụkụ 1 nke 2)

Njirimara	DDR na DDR2	DDR3
Onye njikwa ọnụọgụ ọkara	✓	✓
Nkwado maka AFI ALTMEMPHY	✓	✓
Nkwado maka interface mpaghara Avalon®Memory Mapped (Avalon-MM).	✓	✓

Isiokwu 15–5. Nkwado atụmatụ (akụkụ 2 nke 2)

Njirimara	DDR na DDR2	DDR3
Nhazi iwu na-ele anya n'ihu njikwa ụlọ akụ yana iji agụ na dee n'usoro	✓	✓
Mgbakwụnye mgbakwunye	✓	✓
Nkwado maka aka ike Avalon gbawara ogologo	✓	✓
Ihe nkwụnye mgbawa ebe nchekwa arụnyere arụnyere	✓	✓
Maapụ adreesị mpaghara-na-ebe nchekwa nwere ike ịhazi	✓	✓
Nhọrọ nhazi oge ịgba ọsọ nke ntọala nha na ọnọdụ, yana oge ebe nchekwa	✓	✓
Ntughari nke onwe (PASR)	✓	✓
Nkwado maka ngwaọrụ DDR3 SDRAM ụlọ ọrụ	✓	✓
Nkwado nhọrọ maka iwu ume ọhụrụ	✓	✓
Nkwado nhọrọ maka iwu mgbada ike na-achịkwa onye ọrụ	✓	✓
Nkwado nhọrọ maka iwu mgbada ọkụ na-akpaghị aka nwere oge ngwụcha mmemme	✓	✓
Nkwado nhọrọ maka ịgụpụta chaja akpaaka yana iwu ide ihe n'aka	✓	✓
Nkwado nhọrọ maka ume ọhụrụ onye njikwa njikwa	✓	✓
Ịkekọrịta elekere ọtụtụ njikwa nhọrọ na SOPC Builder Flow	✓	✓
Ntinye ngbanwe agbakwunyere njehie (ECC) ọrụ 72-bit	✓	✓
Ọrụ ECC agbakwunyere, 16, 24, na 40-bit	✓	✓
Nkwado maka dee akụkụ-okwu na nhọrọ mgbazi njehie akpaka	✓	✓
Onye nrụpụta SOPC dị njikere
Nkwado maka nyocha OpenCore Plus	✓	✓
Ụdị ịme anwansị arụmọrụ IP maka ojiji na VHDL na simulator Verilog HDL na-akwado Altera.	✓	✓

Ihe ndetu na tebụl 15–5:

1. HPC II na-akwado uru latency mgbakwunye ka ukwuu ma ọ bụ haha ​​na tRCD-1, na nkeji okirikiri elekere (tCK).
2. Ejikwaghị DDR3 SDRAM akwado atụmatụ a yana nhazi ọkwa.

Atụmatụ anaghị akwado

Tebụl 15–6 na-achịkọta atụmatụ anaghị akwado maka ebe nchekwa mpụga dabere na Altera's ALTMEMPHY.

Isiokwu 15–6. Atụmatụ anaghị akwado

Protocol ebe nchekwa	Njirimara enweghị atụ
DDR na DDR2 SDRAM	ịme anwansị oge
	Ogologo mgbawa nke 2
	Agbawa obere akụkụ na mgbawa na-enweghị nkwekọrịta na ECC na ọnọdụ ECC na-abụghị nke ECC mgbe enwere nkwarụ DM ntụtụ.
DDR3 SDRAM	ịme anwansị oge
	Agbawa obere akụkụ na mgbawa na-enweghị nkwekọrịta na ECC na ọnọdụ ECC na-abụghị nke ECC mgbe enwere nkwarụ DM ntụtụ.
	Stratix III na Stratix IV
	DIMM nkwado
	Ọnụego ọnụ ahịa zuru oke

Nyochaa MegaCore

Altera na-eme nnukwu ule na-enweghị usoro, eduzi ya na mkpuchi ule arụ ọrụ site na iji ụdị Denali ọkọlọtọ ụlọ ọrụ iji hụ na arụmọrụ nke DDR, DDR2, na DDR3 SDRAM Controllers nwere ALTMEMPHY IP.

Iji akụrụngwa

Akụkụ a na-enye ozi iji akụrụngwa eme ihe maka ndị na-ahụ maka ebe nchekwa mpụga yana ALTMEMPHY maka ezinụlọ ngwaọrụ akwadoro. A na-enye ozi a dịka ntuziaka naanị; maka data iji akụrụngwa eme ihe, ị kwesịrị ịmepụta isi IP gị wee rụtụ aka na akụkọ sitere na ngwa Quartus II mepụtara.
Tebụl 15–7 na-egosi data ojiji akụrụngwa maka ALTMEMPHY megafunction, yana DDR3 njikwa arụmọrụ dị elu II maka ngwaọrụ Arria II GX.

Isiokwu 15–7. Iji akụrụngwa na ngwa Arria II GX (akụkụ 1 nke 2)

Protocol	Ebe nchekwa Obosara (Bits)	Ngwakọta ALUTS	Ezi uche Na-edebanye aha	Mem ALUTs	M9K Ihe mgbochi	M144K Ihe mgbochi	Ebe nchekwa y (Bits)
Onye njikwa
DDR3 (Ọkara ọnụego)	8	1,883	1,505	10	2	0	4,352
	16	1,893	1,505	10	4	0	8,704
	64	1,946	1,521	18	15	0	34,560
	72	1,950	1,505	10	17	0	39,168

Isiokwu 15–7. Iji akụrụngwa na ngwa Arria II GX (akụkụ 2 nke 2)

Protocol	Ebe nchekwa Obosara (Bits)	Ngwakọta ALUTS	Ezi uche Na-edebanye aha	Mem ALUTs	M9K Ihe mgbochi	M144K Ihe mgbochi	Ebe nchekwa y (Bits)
Onye njikwa+PHY
DDR3 (Ọkara ọnụego)	8	3,389	2,760	12	4	0	4,672
	16	3,457	2,856	12	7	0	9,280
	64	3,793	3,696	20	24	0	36,672
	72	3,878	3,818	12	26	0	41,536

Tebụl 15–8 na-egosi data ojiji akụrụngwa maka DDR2 njikwa arụmọrụ dị elu yana njikwa PHY, maka nhazi nke ọkara na ọnụego zuru oke maka ngwaọrụ Arria II GX.

Isiokwu 15–8. Ijikwa akụrụngwa DDR2 na ngwa Arria II GX

Protocol	Ebe nchekwa Obosara (Bits)	Ngwakọta ALUTS	Ezi uche Na-edebanye aha	Mem ALUTs	M9K Ihe mgbochi	M144K Ihe mgbochi	Ebe nchekwa (Bits)
Onye njikwa
DDR2 (Ọkara ọnụego)	8	1,971	1,547	10	2	0	4,352
	16	1,973	1,547	10	4	0	8,704
	64	2,028	1,563	18	15	0	34,560
	72	2,044	1,547	10	17	0	39,168
DDR2 (ọnụego zuru oke)	8	2,007	1,565	10	2	0	2,176
	16	2,013	1,565	10	2	0	4,352
	64	2,022	1,565	10	8	0	17,408
	72	2,025	1,565	10	9	0	19,584
Onye njikwa+PHY
DDR2 (Ọkara ọnụego)	8	3,481	2,722	12	4	0	4,672
	16	3,545	2,862	12	7	0	9,280
	64	3,891	3,704	20	24	0	36,672
	72	3,984	3,827	12	26	0	41,536
DDR2 (ọnụego zuru oke)	8	3,337	2,568	29	2	0	2,176
	16	3,356	2,558	11	4	0	4,928
	64	3,423	2,836	31	12	0	19,200
	72	3,445	2,827	11	14	0	21,952

Tebụl 15–9 na-egosi data ojiji akụrụngwa maka onye njikwa na njikwa arụmọrụ dị elu nke DDR2 gbakwunyere PHY, maka nhazi nke ọkara na ọnụego zuru oke maka ngwaọrụ Cyclone III.

Isiokwu 15–9. Ijikwa akụrụngwa DDR2 na ngwaọrụ Cyclone III

Protocol	Ebe nchekwa Obosara (Bits)	Ezi uche Na-edebanye aha	Mkpụrụ ndụ mgbagha	M9K ngọngọ	Ebe nchekwa (Bits)
Onye njikwa
DDR2 (Ọkara ọnụego)	8	1,513	3,015	4	4,464
	16	1,513	3,034	6	8,816
	64	1,513	3,082	18	34,928
	72	1,513	3,076	19	39,280
DDR2 (ọnụego zuru oke)	8	1,531	3,059	4	2,288
	16	1,531	3,108	4	4,464
	64	1,531	3,134	10	17,520
	72	1,531	3,119	11	19,696
Onye njikwa+PHY
DDR2 (Ọkara ọnụego)	8	2,737	5,131	6	4,784
	16	2,915	5,351	9	9,392
	64	3,969	6,564	27	37,040
	72	4,143	6,786	28	41,648
DDR2 (ọnụego zuru oke)	8	2,418	4,763	6	2,576
	16	2,499	4,919	6	5,008
	64	2,957	5,505	15	19,600
	72	3,034	5,608	16	22,032

Achọrọ Sistemụ

Onye njikwa DDR3 SDRAM nwere ALTMEMPHY IP bụ akụkụ nke MegaCore IP Library, nke ejiri sọftụ Quartus II kesaa yana nbudata na Altera. websaịtị, www.altera.com.

Maka ihe achọrọ sistemu yana ntuziaka nwụnye, rụtụ aka na nwụnye Software & Ikikere Altera.

Nwụnye na ikikere

Ọgụgụ 15–2 na-egosi nhazi ndekọ aha mgbe ị wụnyechara DDR3 SDRAM Controller na ALTMEMPHY IP, ebe bụ ndekọ nwụnye. Akwụkwọ ndekọ nrụnye nke ndabara na Windows bụ c:\altera\ ; na Linux ọ bụ /opt/altera .

Ọnụ ọgụgụ 15-2. Ọdịdị ndekọ

Ị chọrọ akwụkwọ ikike maka ọrụ MegaCore naanị mgbe afọ ojuju zuru oke na ọrụ ya na arụmọrụ ya, ma chọọ iwepụta atụmatụ gị na mmepụta.
Iji jiri DDR3 SDRAM HPC, ị nwere ike ịrịọ ikikere file site na Altera web saịtị na www.altera.com/license ma wụnye ya na kọmputa gị. Mgbe ị rịọrọ akwụkwọ ikike file, Altera na-ezitere gị ikikere.dat file. Ọ bụrụ na ịnweghị ịntanetị, kpọtụrụ onye nnọchi anya mpaghara gị.
Iji jiri DDR3 SDRAM HPC II, kpọtụrụ onye na-ere ahịa mpaghara gị ka ị nye ikike.

Ntụle efu

Njirimara nyocha Altera's OpenCore Plus bụ naanị na DDR3 SDRAM HPC. Site na njirimara nyocha OpenCore Plus, ị nwere ike ịme omume ndị a:

• Mee ka omume nke megafunction (ọrụ Altera MegaCore ma ọ bụ AMPPSM megafunction) n'ime sistemụ gị.
• Nyochaa arụmọrụ nke imewe gị, yana nyochaa nha ya na ọsọ ya ngwa ngwa na ngwa ngwa.
• Mepụta mmemme ngwaọrụ nwere oke oge files maka atụmatụ nke gụnyere ọrụ MegaCore.
• Hazie ngwaọrụ wee nyochaa imewe gị na ngwaike.

Ịkwesịrị ịzụta akwụkwọ ikike maka megafunction naanị mgbe afọ ojuju zuru oke na ọrụ ya na arụmọrụ ya, ma chọọ iwere imepụta gị na mmepụta.

Omume Oge Ọpụpụ nke OpenCore Plus

Nyocha ngwaike OpenCore Plus nwere ike ịkwado ụdị ọrụ abụọ ndị a:

• Enweghị njikọ - imewe ahụ na-agba obere oge
• Tethered-chọrọ njikọ n'etiti bọọdụ gị na kọmputa ndị ọbịa. Ọ bụrụ na ihe niile megafunctions na imewe na-akwado mode ejikọrọ, ngwaọrụ ahụ nwere ike ịrụ ọrụ ogologo oge ma ọ bụ ruo mgbe ebighị ebi.

Megafunctions niile dị na ngwaọrụ na-apụ n'otu oge mgbe oge nyocha kacha mma ruru. Ọ bụrụ na enwere ihe karịrị otu megafunction n'ime imewe, enwere ike ikpuchi omume oge ezumike nke otu mega site na omume nkwụsị nke megafunctions ndị ọzọ.

Maka ọrụ MegaCore, oge a na-ejikọtaghị ọnụ bụ 1 hour; ọnụ ahịa oge ejikọtara ọnụ anaghị agwụ agwụ.

Nhazi gị na-akwụsị ịrụ ọrụ mgbe oge nleba anya ngwaike gwụchara na mmepụta local_ready na-agbada ala.

Akụkọ ngbanwe akwụkwọ

Tebụl 15–10 depụtara akụkọ ndegharị maka akwụkwọ a.

Isiokwu 15-10. Akụkọ ndegharị akwụkwọ

Ụbọchị	Ụdị	Mgbanwe
Nọvemba 2012	1.2	Gbanwee nọmba isi site na 13 ruo 15.
June 2012	1.1	Akara ngosi nzaghachi agbakwunyere.
Nọvemba 2011	1.0	Ozi mwepụta jikọtara ọnụ, Nkwado Ezinụlọ ngwaọrụ, ndepụta atụmatụ, yana ndepụta atụmatụ anaghị akwado maka DDR, DDR2, na DDR3.

Akwụkwọ / akụrụngwa

Ndị na-ahụ maka ATERA DDR2 SDRAM [pdf] Ntuziaka DDR2 SDRAM njikwa, DDR2, SDRAM njikwa, njikwa

Ntụaka

• Akwụkwọ ntuziaka onye ọrụ