參數(shù)資料
型號: HD404394
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
中文描述: 4位HMCS400系列微電腦(4位單片微計(jì)算機(jī))
文件頁數(shù): 71/100頁
文件大?。?/td> 610K
代理商: HD404394
HD404344R Series/HD404394 Series
71
Port Mode Register A (PMRA: 004):
This register A has the following functions:
R0
1
/SI pin function selection
R0
2
/SO pin function selection
Port mode register A is a three-bit write-only register and reset to 0 by an MCU reset, as listed in figure 50.
Bit
Initial value
Read/Write
Bit name
3
Not used
2
0
W
PMRA2
0
0
W
PMRA0
1
0
W
PMRA1
PMRA0
0
1
R0
2
/SO Mode Selection
R0
2
SO
Port mode register A (PMRA: $004)
PMRA1
0
1
R0
1
/SI Mode Selection
R0
1
SI
PMRA2
0
1
R0
3
/TOC Mode Selection
R0
3
TOC
Figure 50 Port Mode Register A (PMRA)
Miscellaneous Register
The miscellaneous register (MIS: $00C) has the following functions:
Control of R0
2
/SO pin PMOS
Pull-up MOS on/off selection
It is a two-bit write-only register and is reset to $0 by an MCU reset, as listed in figure 51.
相關(guān)PDF資料
PDF描述
HD4074344S 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
HD4074394S 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
HD40C4341R 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
HD40C4342R 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
HD40C4344R 4-bit HMCS400-series microcomputer(4位單片微計(jì)算機(jī))
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