NEC V850E/RS1 User Manual page 134

32-/16-bit single-chip microcontroller with can interface
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(b) Port mode register 4 (PM4)
This is an 8-bit register used to specify the input mode/output mode.
This register can be read and written in 8-bit or 1-bit units.
Symbol
PM4
R/W
(c) Port mode control register 4 (PMC4)
This is an 8-bit register used to specify the port mode/control mode.
It can be read and written in 8-bit or 1-bit units.
Symbol
PMC4
R/W
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Chapter 4 Port Functions
Figure 4-30: Port Mode Register 4 (PM4) Format
7
6
5
4
1
1
1
1
R/W
R/W
R/W
R/W
PM4n
0
Output mode
1
Input mode
Figure 4-31: Port Mode Control Register 4 (PMC4) Format
7
6
5
4
0
0
0
0
R/W
R/W
R/W
R/W
PMC42
0
I/O port
1
SCKB0 Input (Serial clock input/output for CSIB0)
PMC41
0
I/O port
1
SOB0 output (Serial output for CSIB0)
PMC40
0
I/O port
1
SIB0 input (Serial input for CSIB0)
User's Manual U16702EE3V2UD00
3
2
1
1
PM42
PM41
R/W
R/W
R/W
I/O mode control (n = 0 to 2)
3
2
1
0
PMC42 PMC41
R/W
R/W
R/W
P42 pin operation mode specification
P41 pin operation mode specification
P40 pin operation mode specification
0
Address
After reset
PM40
FFFFF428H
FFH
R/W
0
Address
After reset
PMC40 FFFFF448H
00H
R/W

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