參數(shù)資料
型號: UPD4991AGS
廠商: NEC Corp.
英文描述: 4-BIT PARALLEL I/O CALENDAR CLOCK
中文描述: 4位并行I / O日歷鐘
文件頁數(shù): 17/32頁
文件大?。?/td> 133K
代理商: UPD4991AGS
μ
PD4991A
17
Table 6 Data Correspondence Table 3
TP
1
FUNCTION CONTROL
(MODE = 0, *, 0, 1 ADDRESS = 1, 0, 1, 1)
DATA
FUNCTION
MSB
LSB
*
0
0
0
2048 Hz
W/O
*
0
0
1
1024 Hz
W/O
*
0
1
0
64 Hz
W/O
*
0
1
1
16 Hz
W/O
*
1
0
0
1 Hz
W/O
*
1
0
1
1-pulse output
W/O
*
1
1
0
“H”
“L”
W/O
*
1
1
1
BUSY
W/O
0
*
*
*
Alarm coincidence flag reset automatically
W/O
1
*
*
*
Alarm coincidence flag not reset automatically
W/O
W/O: WRITE ONLY
*: Don’t Care
Table 7 Data Correspondence Table 4
TP
2
FUNCTION CONTROL
(MODE = 0, *, 1, 0 ADDRESS = 1, 0, 1, 1)
DATA
FUNCTION
MSB
LSB
*
0
0
0
0.1-s interval
W/O
*
0
0
1
1-s interval
W/O
*
0
1
0
10-s interval
W/O
*
0
1
1
30-s interval
W/O
*
1
0
0
60-s interval
W/O
0
1
1
1
BUSY
W/O
0
*
*
*
REPEAT
W/O
1
*
*
*
1 SHOT
W/O
W/O: WRITE ONLY
*: Don’t Care
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