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參數資料
型號: W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結構的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結構的32位嵌入式微控制器)
文件頁數: 53/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
53
Versi on 0. 4, March/2000
(default)
Bit 13-15 DRAM cycle time
Bit 13-15
DRAM cycle time
(MCLK)
2
3
4
5
6
7
8
9 (default)
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
DRAM Timing Control Register_1 (DRAMctrl1)
Index : 0x3c
Read/Write
Power-on Default : 0x0
0
1
2
3
4
5
6
7
CASPtim
e
CASRpul[0:2]
CASWpul[0:1]
CA2RA[0:1]
8
9
10
11
12
13
14
15
RA2CD[0:1]
RAS to CAS delay[0:2]
LDI2ACT[0:2]
Bit 0 CAS precharge time
0 = 1 MCLK
Bits 1-3
(CAS# active-time during "
read cycle
")
1 = 2 MCLK
CAS pulse width during Read cycle
Bit 1-3
CAS# active-time
(MCLK)
1
0 0 0
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