26
µ
PD78214 Sub-Series
(2) Pins other than those which function as ports
TO0-TO3
CI
RxD
TxD
ASCK
SB0
SI
SO
SCK
NMI
INTP0
INTP1
INTP2
INTP3
INTP4
INTP5
AD0-AD7
A8-A15
A16-A19
RD
WR
WAIT
ASTB
REFRQ
RESET
X1
X2
AN0-AN5
AN6, AN7
AVREF
AVSS
VDD
VSS
NC
P34-P37
P23/INTP2
P30
P31
P25/INTP4
P33/SO
P27
P33/SB0
P32
P20
P21
P22
P23/CI
P24
P25/ASCK
P26
P40-P47Note
P50-P57Note
P60-P63
P64Note
P65Note
P66/AN6
P67/AN7
P70-P75
P66/WAIT,
P67/REFRQ
Output
Input
Input
Output
Input
Input/output
Input
Output
Input/output
Input/output
Output
Output
Output
Output
Input
Output
Output
Input
Input
Input
Timer output
Count clock supplied to eight-bit timer/counter unit 2
Serial data input (UART)
Serial data output (UART)
Baud rate clock input (UART)
Serial data input/output (SB2)
Serial data input (three-wire serial I/O)
Serial data output (three-wire serial I/O)
Serial clock input/output (SBI, three-wire serial I/O)
Time-multiplexed address/data bus (external memory connected)
High-order address bus (external memory connected)
High-order address when the addresses are expanded (external memory connected)
Read strobe to external memory
Write strobe to external memory
Wait insertion
Latch timing for addresses A0 to A7 (when external memory is accessed)
Refresh pulse to external pseudo-static memory
Chip reset
Connected to the crystal oscillator used for the system clock (a clock
signal can be input to X1)
Designating ROM-less operation (access to the external memory
mapped to the same area as the internal ROM). Set this pin to low for
the
µ
PD78213, or to high for the
µ
PD78212 and
µ
PD78214.
A/D converter reference voltage
A/D converter ground
Main power
Ground
External interrupt requests
Analog voltage input for A/D converter
Input
Pin name for
secondary function
Pin Function
Input/output
Note These pins do not function as ports in the case of the
µ
PD78213.
Input
EA