參數(shù)資料
型號(hào)： M38507M8-XXXSP
廠商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁數(shù)： 25/99頁
文件大小： 1384K
代理商： M38507M8-XXXSP
25
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3850 Group (Spec. A)
Fig. 19 Structure of port registers (1) (spec. A)
Port P0, P1, P2 pull-up control register
(PULL012: address 0012
16
)
b7
b0
P0 pull-up control bit
0: No pull-up
1: Pull-up
P1 pull-up control bit
0: No pull-up
1: Pull-up
P2 pull-up control bit
0: No pull-up
1: Pull-up
Not used (return
“
0
”
when read)
b
7
b
0
Port P3 pull-up control register
(PULL3: address 0013
16
)
P3
0
pull-up control bit
0: No pull-up
1: Pull-up
P3
1
pull-up control bit
0: No pull-up
1: Pull-up
P3
2
pull-up control bit
0: No pull-up
1: Pull-up
P3
3
pull-up control bit
0: No pull-up
1: Pull-up
P3
4
pull-up control bit
0: No pull-up
1: Pull-up
Fix these bits to
“
0
”
.
Note
: Pull-up control is valid when the corresponding bit
of the port direction register is
“
0
”
(input).
When that bit is
“
1
”
(output), pull-up cannot be set
to the port of which pull-up is selected.
Note
: Pull-up control is valid when the corresponding bit
of the port direction register is
“
0
”
(input).
When that bit is
“
1
”
(output), pull-up cannot be set
to the port of which pull-up is selected.
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