UPD78320 Datasheet, PDF (9/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

(P20) NMI
INTP0–INTP5
(P21–P26)
PROGRAMMABLE
INTERRUPT
CONTROLLER
(P80) TO00
(P81) TO01
(P82) TO02
(P83) TO03
(P84) TO10
(P85) TO11
(P27) TI/INTP6
TIMER/COUNTER UNIT
(REALTIME PULSE UNIT)
(P34) SCK
(P32) SO/SB0
(P33) SI/SB1
(P30) TXD
(P31) RXD
SERIAL INTERFACE
(SBI)
(UART)
EXU
Main RAM
GENERAL
REGISTERS
128 bytes
&
ALU
DATA
MEMORY
128 bytes
MICRO SEQUENCE
CONTROL
MICRO ROM.
ROM/Peripheral RAM
BCU
ROM ^Note
16K bytes/
Peripheral
RAM
384 bytes
SYSTEM
CONTROL
&
BUS
CONTROL
&
PREFETCH
CONTROL
X1
X2
RESET
ASTB
RD (P90)
WR (P91)
TAS (P92)
TMD (P93)
EA
A8–A15 (P50–P57)
AD0–AD7 (P40–P47)
A/D CONVERTER
(10 BITS)
WDT
VDD
VSS
PORT
Note The µPD78320 does not incorporate ROM.