參數(shù)資料
型號(hào): IBM25403GCX-3JC76C2
元件分類(lèi): 微控制器/微處理器
英文描述: RISC PROCESSOR, PQFP16
封裝: PLASTIC, QFP-160
文件頁(yè)數(shù): 29/54頁(yè)
文件大小: 541K
代理商: IBM25403GCX-3JC76C2
IBM PowerPC 403GCX
35
SRAM Read-Write-Read with Zero Wait and One Hold
Bank Register Bit Settings
Notes:
1. WBE2:3 are address bits 30:31 if the bus width is programmed as byte or halfword.
2. See Table 20 on page 34 for WBE signal denitions based on bus width.
3. Byte Enable Mode IOCR[BEM] = 1. WBE0:3/BE0:3 are byte enables and BLast is the signal which appears on the
multiplexed OE[XSize1][BLast] output.
4. When in Byte Enable Mode IOCR[BEM] = 1, the BLast signal appears on the multiplexed OE[XSize1][BLast] out-
put, as described in Table 4 on page 8.
5. Not Byte Enable Mode IOCR[BEM] = 0. WBE0:3/BE0:3 are write byte enables and OE is the signal which appears
on the multiplexed OE[XSize1][BLast] output.
SLF
Burst
Mode
Bus Width
Ready
Enable
Wait
States
CSon
OEon
WEon
WEoff
Hold
Bit 13
Bit 14
Bits 15:16
Bit 17
Bits 18:23
Bit 24
Bit 25
Bit 26
Bit 27
Bits 28:30
0 or 1
0
xx
0
00 0000
0
001
A6:29,1
WBE2[A30],
WBE3[A31]
R/W
CSx
OE4
WBE0:32,4
D0:31
Read Address
SysClk
1
2
3
4
5
6
7
8
Data In
Data Out
Data In
Write Address
Read Address
BusError
Error?
Valid – BE
BE0:35
Valid – BE
BLast5
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