CHAPTER 3 PIN FUNCTIONS
Page 20 of 920
Set in each port I/O, buffer, pull-up resistor is also valid for alternate functions.
Note 1.
Input of A/D converter is not supported.
Note 2.
Each pin can be specified as digital I/O port by setting port mode control register x (PMCx) (Can be specified in 1-bit
units).
Note 3.
This pin is used for connection between the MCU and RF transceiver. For details, refer to
BETWEEN MCU AND RF TRANSCEIVER
.
Note 4.
Each pin can be specified as either digital or analog by setting the A/D port configuration register (ADPC).
(1/2)
Function
Name
Pin Type
I/O
After Reset
Release
Alternate Function
Function
P02
7-3-4
I/O
Prohibit
I/O
SO10/TxD1
Port 0.
3-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by
a software setting at input port.
Input of P03 and P04 can be set to TTL input buffer.
Output of P02 to P04 can be set to N-ch open-drain
output (V
DD
tolerance).
The digital I/O of P02 and P03 is prohibited at the
reset release
.
P03
8-3-4
SI10/RxD1
P04
8-1-4
Input port
SCK10
P10
—
I/O
Input port
—
Port 1.
7-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by
a software setting at input port.
—
P12
—
P13
SO20
P14
SI20
P15
SCK20
P16
—
P20
4-3-3
I/O
Analog
function
ANI0/AV
REFP
Port 2.
3-bit I/O port.
Input/output can be specified in 1-bit units.
Can be set to analog input
P21
ANI1/AV
REFM
P22
ANI2
P30
8-1-4
I/O
Input port
INTP3
Port 3.
2-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by
a software setting at input port.
P31
7-1-3
TI03/TO03/INTP4
P40
7-1-3
I/O
Input port
TOOL0
Port 4.
1-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by
a software setting at input port.
P60
12-1-2
I/O
Input port
SCLA0
Port 6.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Output of P60 to P63 is N-ch open-drain output
(6 V tolerance).
P61
SDAA0
P62
SCLA1
P63
SDAA1
P70
7-1-3
I/O
Input port
SCK21
Port 7.
6-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by
a software setting at input port.
Output of P71 can be set to N-ch open-drain output
(V
DD
tolerance).
P71
7-1-4
SI21
P72
7-1-3
SO21
P75
NTP9
P76
INTP10
P77
INTP11
Содержание RL78/G1H
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