參數(shù)資料
型號: HD40A4358H
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer
中文描述: 4位HMCS400系列微機(jī)
文件頁數(shù): 71/100頁
文件大?。?/td> 398K
代理商: HD40A4358H
HD404358 Series
71
Bit
Initial value
Read/Write
Bit name
3
0
W
PMRA3
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
PMRA3
0
1
D
3
/BUZZ Mode Selection
D
3
BUZZ
Figure 60 Port Mode Register A (PMRA)
Miscellaneous Register (MIS: $00C):
This register has the following functions (figure 61).
R0
2
/SO pin PMOS control
Miscellaneous register (MIS: $00C) is a 4-bit write-only register and is reset to $0 by MCU reset.
Bit
Initial value
Read/Write
Bit name
3
0
W
MIS3
2
0
W
MIS2
0
Not used
1
Not used
MIS2
CMOS Buffer
On/Off Selection
for Pin R0
2
/SO
Miscellaneous register (MIS: $00C)
0
1
PMOS active
PMOS off
MIS3
0
1
Pull-Up MOS
On/Off Selection
Pull-up MOS off
Pull-up MOS on
(refer to table 21)
Figure 61 Miscellaneous Register (MIS)
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參數(shù)描述
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