UPD784044 Datasheet, PDF (11/90 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD784044(A), 784046(A)
4. BLOCK DIAGRAM
NMI
INTP0-INTP6
INTP0-INTP3
TO00-TO03
Programmable
interrupt
controller
Timer 0
(16 bits)
TO10, TO11
Timer 1
(16 bits)
INTP5/TI2
TO20, TO21
Timer/counter2
(16 BITS)
INTP6/TI3
TO30, TO31
Timer/counter3
(16 BITS)
Timer 4
(16 bits)
RTP0-RTP3
ANI0-ANI15
AVDD
AVSS
AVREF
INTP4
Real-time
output port
A/D
converter
Watchdog
timer
78K/IV
CPU core
ROM
RAM
UART/IOE1
Baud-rate
generator
UART/IOE2
Baud-rate
generator
BUS I/F
Port 0
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Port 9
System
control
Remark The internal ROM and RAM capacity differs depending on the products.
RxD/SI1
TxD/SO1
ASCK/SCK1
RxD2/SI2
TxD2/SO2
ASCK2/SCK2
BWD
AD0-AD15
A16-A19
RD
LWR, HWR
ASTB
WAIT
P00-P03
P10-P12
P20
P21-P27
P30-P37
P40-P47
P50-P57
P60-P63
P70-P77
P80-P87
P90-P94
CLKOUT
RESET
MODE
X1
X2
VDD
VSS
11