參數(shù)資料
型號(hào): 79RC32K438300BBI
廠商: Integrated Device Technology, Inc.
英文描述: IDTTM InterpriseTM Integrated Communications Processor
中文描述: IDTTM InterpriseTM集成通信處理器
文件頁(yè)數(shù): 22/59頁(yè)
文件大?。?/td> 644K
代理商: 79RC32K438300BBI
22 of 59
May 25, 2004
IDT 79RC32438
Figure 6 DDR SDRAM AC Timing Waveform - SDRAM Read Access
RowA
Col A0
Col A2
RowB
NOP
ACTV
NOP
RD
RD
NOP
NOP
PRECHG NOP
ACTV
NOP
BNKx
BNKx
BNKx
BNKx
BNKx
D0 D1 D2
D3
D0 D1 D2
D3
D0 D1 D2 D3
Tdo_7m
Tdo_7m
Tdo_7m
Tdo_7m
Tskew_7g
Tskew_7g
DDRCKPx
DDRCKNx
DDRCSNx
DDRADDR[13:0]
DDRCMD
1
DDRCKE
DDRBA[1:0]
DDRDM[7:0]
DDROEN[3:0]
DDRDQSx (ideal)
DDRDATA[31:0]
2
(ideal)
DDRDQSx (min)
DDRDATA[31:0]
2
DDRDQSx (max)
DDRDATA[31:0]
2
1
DDRCMD contains DDRRASN, DDRCASN and DDRWEN.
2
DDRDATA is either 32-bits or 16-bits wide depending on the DBW control bit in DDRC Register
(see Chapter 7, DDR Controller, in the RC32438 User Reference Manual).
Tac (min)
Tac (max)
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