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Pin Name
I/O
On-Chip Pull-up
SO0
Output
Provided
SO1
SO2
SO3
[SO4]
TCLR0
Input
Provided
TCLR1
TI0
Input
Provided
TI1
TI2
TI3
TI4
TI5
TO0
Output
Provided
TO1
TO2
TO3
TO4
TO5
TXD0
Output
Provided
TXD1
−
V
DD
−
V
DDBU
−
V
SS
−
V
SSBU
WAIT
Input
None
WR0
Output
None
WR1
X1
Input
None
−
X2
XT1
Input
None
−
XT2
Note µ PD703201Y, 703204Y, 70F3201Y, and 70F3204Y only
Remark
[ ]: Pins provided only in the V850ES/SA3
42
CHAPTER 2 PIN FUNCTIONS
Resistor
Serial transmit data output (CSI0)
Serial transmit data output (CSI1)
Serial transmit data output (CSI2)
Serial transmit data output (CSI3)
Serial transmit data output (CSI4)
Timer clear input (TM0)
Timer clear input (TM1)
External event/clock input (TM0)
External event/clock input (TM1)
External event/clock input (TM2)
External event/clock input (TM3)
External event/clock input (TM4)
External event/clock input (TM5)
Timer output (TM0)
Timer output (TM1)
Timer output (TM2)
Timer output (TM3)
Timer output (TM4)
Timer output (TM5)
Serial transmit data output (UART0)
Serial transmit data output (UART1)
−
Positive power supply pin for internal circuits
(except subclock oscillator, RTC, and internal RAM)
−
Positive power supply pin for backup
(for subclock oscillator, RTC, and internal RAM)
−
Ground potential for internal circuits
(except subclock oscillator, RTC, and internal RAM)
−
Ground potential for backup
(for subclock oscillator, RTC, and internal RAM)
External wait input
Write strobe for external memory (lower 8 bits)
Write strobe for external memory (higher 8 bits)
Oscillator connection for main clock
Oscillator connection for subclock
Preliminary User's Manual U15905EJ1V0UD
Function
(3/3)
Alternate-Function Pin
490
P41/SDA
P31/TXD0
P911/A11
P914/A14
[P21]
P43/INTP00/TI0
P45/INTP10/TI1
P43/INTP00/TCLR0
P45/INTP10/TCLR1
P01/INTP0
P02/INTP1
P03/INTP2
P04/INTP3
P44/INTP01
P46/INTP11
P94/A4
P95/A5
P96/A6
P97/A7
P31/SO1
P99/A9
−
−
−
−
PCM0
PCT0
PCT1
−
−
−
−
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