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M69KB096AB bảng dữ liệu(PDF) 28 Page - STMicroelectronics

tên linh kiện M69KB096AB
Giải thích chi tiết về linh kiện  64 Mbit (4Mb x 16), 104MHz Clock Rate, 1.8V Supply, Bare Die, Burst PSRAM
PDF  73 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M69KB096AB bảng dữ liệu(HTML) 28 Page - STMicroelectronics

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7 Configuration Registers
M69KB096AB
28/73
Figure 7.
Set Configuration Register (Software Method)
1.
Only the Bus Configuration Register (BCR) and the Refresh Configuration Register (RCR) can be modified.
2.
To program the BCR or the RCR on last bus write cycle, DQ0-DQ15 must be set to ‘0001h’ and ‘0000’ respectively.
3.
The highest order address location is not modified during this operation.
4.
The control signals E, G, W, LB and UB, must be toggled as shown in the above figure.
Figure 8.
Read Configuration Register (Software Method)
1.
To read the BCR, RCR or DIDR on last bus read cycle, DQ0-DQ15 must be set to ‘0001h’, ‘0000’ and ‘0002’ respectively.
2.
The highest order address location is not modified during this operation.
3.
The control signals E, G, W, LB and UB, must be toggled as shown in the above figure.
Addr.
7FFFFFh
E
G
W
LB, UB
AI09469f
7FFFFFh
7FFFFFh
7FFFFFh
DQ0-DQ15
(2)
Configuration
Register Data
tEHEL2
tEHEL2
tEHEL2
Addr.
7FFFFFh
E
G
W
LB, UB
AI09470f
7FFFFFh
7FFFFFh
7FFFFFh
DQ0-DQ15
(1)
Configuration
Register Data
tEHEL2
tEHEL2
tEHEL2



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