參數(shù)資料
型號(hào): HD407A4639R
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位單片機(jī)(4位單片微計(jì)算機(jī))
文件頁數(shù): 50/133頁
文件大小: 803K
代理商: HD407A4639R
HD404639R Series
50
Bit
Initial value
Read/Write
Bit name
3
0
W
PMRB3
2
0
W
PMRB2
0
0
W
PMRB0
1
0
W
PMRB1
PMRB1
0
1
R0
1
/INT
2
mode selection
R0
1
INT
2
Port mode register B (PMRB: $024)
PMRB0
0
1
R0
0
/
INT
1
mode selection
R0
0
INT
1
PMRB2
0
1
R0
2
/INT
3
mode selection
R0
2
INT
3
PMRB3
0
1
R0
3
/INT
4
mode selection
R0
3
INT
4
Figure 30 Port Mode Register B (PMRB)
Bit
Initial value
Read/Write
Bit name
3
Not used
2
Not used
0
0
R/W
TMB20
1
0
R/W
TMB21
Timer mode register B2 (TMB2: $013)
TMB21
0
1
TMB20
0
1
0
1
R3
0
/TOB mode selection
R3
0
TOB
TOB
TOB
R3
0
port
Toggle output
0 output
1 output
Figure 31 Timer Mode Register B2 (TMB2)
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