NEC mPD75512, Техническое описание

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µ
PD75512
10
XT2 —
4.2 NON-PORT PINS
Input/
Pin Input/ Shared Function When Reset Output
Name Output Pin Circuit
Type*
TI0 Input P13 The external event pulse input pin for the timer/ —
B
-C
event counter.
PTO0 Output P20 Timer/event counter output pin Input E-B
PCL Output P22 Clock output pin Input E-B
BUZ Output P23 Fixed frequency output pin (for buzzer output or Input E-B
system clock trimming)
SCK0 Input/ P01 Serial clock input/output pin output Input
F
-A
output
SO0/SB0 Input/ P02 Serial data output pin Input
F
-B
output Serial bus input/output pin
SI0/SB1 Input/ P03 Serial data input pin Input
M
-C
output Serial bus input/output pin
INT4 Input P00 Edge detection vector interrupt input pin (both —
B
rising edge and falling edge detection)
INT0 P10 Edge detection vector Synchronized
interrupt input pin with clock
Input (detection edge selectable) —
B
-C
INT1 P11 Asynchronous
INT2 Input P12 Edge detection testable input Asynchronous —
B
-C
pin(rising edge detection)
KR0-KR3 Input P60-P63 Parallel falling edge detection testable input pin Input
F
-C
KR4-KR7 Input P70-P73 Parallel falling edge detection testable input pin Input
F
-A
SCK1 Input/ P81 Serial clock input/output pin Input
F
output
SO1 Output P82 Serial data output pin Input E
SI1 Input P83 Serial data input pin Input
B
AN0-AN3 — Y
Input A/D converter analog input pin —
AN4-AN7 P150-P153 Y-A
AV
REF
Input — A/C converter reference voltage input pin — Z
AV
SS
— — A/D converter reference ground pin — —
Pins for connecting the crystal ceramic oscillator
to the main system clock generator. When
X1, X2 Input — inputting the external clock, input the external — —
clock to pin X1, and the reverse phase of the
external clock to pin X2.
XT1 Input Pins for connecting the crystal oscillator to the
— subsystem clock generator. When the external — —
clock is used, inputs the external clock to pin
XT1. In this case, pin XT2 must be left open.
RESET Input — System reset input pin —
B
PPO Output P80 Timer/pulse generator pulse output pin Input E
IC — — Internally Connected. Connect directly to V
SS
. — —
V
DD
— — Positive power supply pin — —
V
SS
— — GND — —
*: The number enclosed with a circle indicates Schmidt trigger input.