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參數資料
型號: W83977TF
廠商: WINBOND ELECTRONICS CORP
英文描述: Multi-Function I/O Port Controller(用于個人計算機的多功能輸入/輸出口控制器)
中文描述: 多功能I / O端口控制器(用于個人計算機的多功能輸入/輸出口控制器)
文件頁數: 106/160頁
文件大小: 1012K
代理商: W83977TF
W83977TF
PRELIMINARY
Publication Release Date: March 1998
-96 -
Revision 0.62
11. CONFIGURATION REGISTER
11.1 Chip (Global) Control Register
CR02 (Default 0x00)
Bit 7 - 1: Reserved.
Bit 0: SWRST --> Soft Reset.
CR07
Bit 7 - 0: LDNB7 - LDNB0 --> Logical Device Number Bit 7 - 0
CR20
Bit 7 - 0: DEVIDB7 - DEBIDB0 --> Device ID Bit 7 - Bit 0 = 0x97 (read only).
CR21
Bit 7 - 0: DEVREVB7 - DEBREVB0 --> Device Rev Bit 7 - Bit 0 =
0x73 (read only).
CR22 (Default 0xff)
Bit 7 - 6: Reserved.
Bit 5: URBPWD
= 0 Power down
= 1 No Power down
Bit 4: URAPWD
= 0 Power down
= 1 No Power down
Bit 3: PRTPWD
= 0 Power down
= 1 No Power down
Bit 2, 1: Reserved.
Bit 0: FDCPWD
= 0 Power down
= 1 No Power down
CR23 (Default 0x
FE
)
Bit 7 - 1: Reserved.
Bit 0: IPD (Immediate Power Down). When set to 1, it will put the whole chip into power down
mode immediately.
CR24 (Default
0b1s000s0s
)
Bit 7: EN16SA
= 0 12 bit Address Qualification
= 1 16 bit Address Qualification
Bit 6: EN48
= 0 The clock input on Pin 1 should be 24 Mhz.
= 1 The clock input on Pin 1 should be 48 Mhz.
The corresponding power-on setting pin is SOUTB (pin 53).
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