Table of Contents
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Pin Name
Port 0
P00 to P03
8-bit input/output port.
Input/output mode can be specified in 1-bit units.
P04 to P07
An on-chip pull-up resistor can be specified by means of software.
P20
Port 2
8-bit input/output port.
P21
Input/output mode can be specified in 1-bit units.
P22
An on-chip pull-up resistor can be specified by means of software.
P23
P24 to P27
P30 to P37
Port 3
8-bit input/output port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by means of software.
P40 to P47
Port 4
8-bit input/output port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by means of software.
P50 to P57
Port 5
8-bit input/output port.
Input/output mode can be specified in 1-bit units.
An on-chip pull-up resistor can be specified by means of software.
Port 6
P64
4-bit input/output port.
P65
Input/output mode can be specified in 1-bit units.
P66
An on-chip pull-up resistor can be specified by means of software.
P67
P70
Port 7
8-bit input/output port.
P71
Input/output mode can be specified in 1-bit units.
P72
An on-chip pull-up resistor can be specified by means of software.
P73
P74
P75
P76, P77
P80
Port 8
5-bit input/output port.
P81
Input/output mode can be specified in 1-bit units.
P82
An on-chip pull-up resistor can be specified by means of software.
P83
P84
P90
Port 9
3-bit input/output port.
P91
Input/output mode can be specified in 1-bit units.
P92
An on-chip pull-up resistor can be specified by means of software.
72
CHAPTER 4 PORT FUNCTIONS
Table 4-1. Port Functions
Function
Preliminary User's Manual U13420EJ2V0UM00
Alternate
Function
INTP0 to INTP3
—
TI00/TO0
TI01
TI50/TO50
TI51/TO51
—
—
AD0 to AD7
A8 to A15
RD
WR
WAIT
ASTB
PCL
ASCK0
TxD0
RxD0
SCK30
SDIO30
—
STB
BUSY
SCK1
SO1
SI1
SCK31
SO31
SI31
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