11
μ
PD78076Y, 78078Y
Function
Pin Name
I/O
Port 0
8-bit input/output port
Input only
Input
Input/output can be specified bit-wise.
When used as an input port, an on-chip pull-up
resistor can be used by means of software.
Input/
output
Input only
Port 1
8-bit input/output port
Input/output can be specified bit-wise.
When used as an input port, an on-chip pull-up resistor can be used
by means of software.
Note 2
Input/
output
Input/
output
Port 2
8-bit input/output port
Input/output can be specified bit-wise.
When used as an input port, an on-chip pull-up resistor can be used
by means of software.
Port 3
8-bit input/output port
Input/output can be specified bit-wise.
When used as an input port, an on-chip pull-up resistor can be used
by means of software.
Input/
output
Input/
output
Port 4
8-bit input/output port
Input/output can be specified in 8-bit units.
When used as an input port, an on-chip pull-up resistor can be used
by means of software.
Test input flag (KRIF) is set to 1 by falling edge detection.
P00
P01
P02
P03
P04
P05
P06
P07
Note 1
P10 to P17
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
P34
P35
P36
P37
P40 to P47
Input
Notes 1.
When using the P07/XT1 pins as an input port, set to 1 bit 6 (FRC) of the processor clock control
register (PCC). (Do not use the on-chip feedback resistor of the subsystem clock oscillator.)
2.
When using the P10/ANI0 to P17/ANI7 pins as the A/D converter analog input, set port 1 to the input
mode. At this time, on-chip pull-up resistor is automatically disconnected.
3. PIN FUNCTIONS
3.1 Port Pins (1/2)
SI1
SO1
SCK1
STB
BUSY
SI0/SB0/SDA0
SO0/SB1/SDA1
SCK0/SCL
TO0
TO1
TO2
TI1
TI2
PCL
BUZ
—
AD0 to
AD7
After
Reset
Input
Input
Input
Input
Input
Input
Input
Alternate
Function
INTP0/TI00
INTP1/TI01
INTP2
INTP3
INTP4
INTP5
INTP6
XT1
ANI0 to
ANI7