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Chapter 16
Port Functions
Preliminary User’s Manual U15839EE1V0UM00
(2)
Setting in input/output mode and control mode
Port CT is set in input/output mode using the port CT mode register (PMCT). In control mode, it is
set using the port CT mode control register (PMCT).
(a) Port CT mode register (PMCT)
This register can be read or written in 8-bit or 1-bit units.
Figure 16-36:
Port CT Mode Register (PMCT)
(b) Port mode control register (PMCCT)
This register can be read or written in 8-bit or 1-bit units.
Figure 16-37:
Port CT Mode Control Register (PMCCT)
7
6
5
4
3
2
1
0
Address
At Reset
PMCT
0
0
0
PMCT4
0
0
PMCT1
PMCT0 FFFFF02AH
03H
Bit Position
Bit Name
Function
4
PMCT4
Specifies input/output mode of PCT4 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
1
PMCT1
Specifies input/output mode of PCT1 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
0
PMCT0
Specifies input/output mode of PCT0 pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
7
6
5
4
3
2
1
0
Address
At Reset
PMCCT
0
0
0
PMCCT4
0
0
PMCCT1 PMCCT0 FFFFF04AH
10H
Bit Position
Bit Name
Function
4
PMCCT4
Specifies operation mode of PMCCT4 pin
0: Input/output port mode
1: RD Read strobe signal output
1
PMCCT1
Specifies operation mode of PMCCT1 pin
0: Input/output port mode
1: UWR Upper write strobe signal output
0
PMCCT0
Specifies operation mode of PMCCT0 pin
0: Input/output port mode
1: LWR Lower write strobe signal output
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