NEC mPD780208 Subseries User Manual page 36

(2) Non-port pins (1/2)
Pin Name I/O
INTP0 Input
INTP1
INTP2
INTP3
SI0 Input
SI1
SO0 Output
SO1
SB0 I/O
SB1
SCK0 I/O
SCK1
STB Output
BUSY Input
TI0 Input
TI1
TI2
TO0 Output
TO1
TO2
PCL Output
BUZ Output
FIP0 to FIP12 Output
FIP13 to FIP20 Output
FIP21 to FIP28
FIP29 to FIP36
FIP37 to FIP44
FIP45 to FIP52
V —
LOAD
ANI0 to ANI7 Input
AV Input
REF
AV —
DD
AV —
SS
RESET Input
36
CHAPTER 2 PIN FUNCTIONS
Function
External interrupt request inputs for which the valid edges (rising
edge, falling edge, or both rising and falling edges) can be
specified.
External interrupt request input with falling edge detection
Serial interface serial data input
Serial interface serial data output
Serial interface serial data input/output
Serial interface serial clock input/output
Serial interface automatic transmit/receive strobe output
Serial interface automatic transmit/receive busy input
Input of external count clock to 16-bit timer (TM0)
Input of external count clock to 8-bit timer (TM1)
Input of external count clock to 8-bit timer (TM2)
16-bit timer (TM0) output (also used for 14-bit PWM output)
8-bit timer (TM1) output
8-bit timer (TM2) output
Clock output (for trimming main system clock and subsystem clock)
Buzzer output
High withstanding voltage and high current output for VFD controller/ Output
driver display output.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified with the mask option.
The µ PD78P0208 has on-chip pull-down resistors (connected to
V ).
LOAD
High withstanding voltage and high current output for VFD controller/
driver display output.
In mask ROM versions, use of an on-chip pull-down resistor can be
specified with the mask option.
The µ PD78P0208 has no on-chip pull-down resistors.
Pull-down resistor connection for VFD controller/driver
A/D converter analog input
A/D converter reference voltage input
A/D converter analog power supply. Connect to V
A/D converter ground potential. Connect to V
System reset input
User's Manual U11302EJ4V0UM
After
Reset
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Output
Input
—
Input
—
. —
DD
. —
SS
—
Alternate
Function
P00/TI0
P01
P02
P03
P25/SB0
P20
P26/SB1
P21
P25/SI0
P26/SO0
P27
P22
P23
P24
P00/INTP0
P33
P34
P30
P31
P32
P35
P36
—
P80 to P87
P90 to P97
P100 to P107
P110 to P117
P120 to P127
—
P10 to P17
—
—
—
—