參數(shù)資料
型號: W83627SF
英文描述: W83627F plus Smart Card Reader Interface. VID Control. GP I/O?
中文描述: W83627F加上智能卡閱讀器接口。 VID控制。大獎賽的I / O?
文件頁數(shù): 43/147頁
文件大?。?/td> 1348K
代理商: W83627SF
W83627SF
PRELIMINARY
Publication Release Date: Nov. 2000
- 36 - Revision 0.60
3.2
Register Descriptions
There are several status, data, and control registers in W83627SF. These registers are defined below:
ADDRESS
OFFSET
base address + 0
base address + 1
base address + 2
base address + 3
base address + 4
base address + 5
base address + 7
REGISTER
READ
WRITE
SA REGISTER
SB REGISTER
TD REGISTER
MS REGISTER
DT (FIFO) REGISTER
DI REGISTER
DO REGISTER
TD REGISTER
DR REGISTER
DT (FIFO) REGISTER
CC REGISTER
3.2.1
Status Register A (SA Register) (Read base address + 0)
This register is used to monitor several disk interface pins in PS/2 and Model 30 modes. In PS/2 mode,
the bit definitions for this register are as follows:
1
2
3
4
5
6
7
0
WP
INDEX
HEAD
TRAK0
STEP
DRV2
INIT PENDING
DIR
INIT PENDING (Bit 7):
This bit indicates the value of the floppy disk interrupt output.
DRV2# (Bit 6):
0
A second drive has been installed
1
A second drive has not been installed
STEP (Bit 5):
This bit indicates the complement of STEP# output.
TRAK0# (Bit 4):
This bit indicates the value of TRAK0# input.
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