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Chapter 16
Port Functions
Preliminary User’s Manual U15839EE1V0UM00
(2)
Setting in input/output mode and control mode
Port CS is set in input/output mode using the port CS mode register (PMCS). In control mode, it is
set using the port CS mode control register (PMCS).
(a) Port CS mode register (PMCS)
This register can be read or written in 8-bit or 1-bit units.
Figure 16-33:
Port CS Mode Register (PMCS)
(b) Port CS mode control register (PMCCS)
This register can be read or written in 8-bit or 1-bit units.
Figure 16-34:
Port CS Mode Control Register (PMCCS)
7
6
5
4
3
2
1
0
Address
At Reset
PMCS
0
0
0
PMCS4 PMCS3
0
0
PMCS0 FFFFF028H
18H
Bit Position
Bit Name
Function
4
PMCS4
Specifies input/output mode of PCS4 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
3
PMCS3
Specifies input/output mode of PCS3 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
0
PMCS0
Specifies input/output mode of PCS0 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
7
6
5
4
3
2
1
0
Address
At Reset
PMCCS
0
0
0
PMCCS4 PMCCS3
0
0
PMCCS0 FFFFF048H
01H
Bit Position
Bit Name
Function
4
PMCCS4
Specifies operation mode of PMCCS4 pin
0: Input/output port mode
1: CS4 Chip select output
3
PMCCS4
Specifies operation mode of PMCCS3 pin
0: Input/output port mode
1: CS3 Chip select output
0
PMCCS4
Specifies operation mode of PMCCS0 pin
0: Input/output port mode
1: CS0 Chip select output
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