ENA1841A Datasheet, PDF (10/30 Pages) ON Semiconductor – 8-bit 1-chip Microcontroller

System Block Diagram
LC87F7932B
Interrupt Control
Standby Control
CF
High-
speed RC
Low-speed
RC
VMRC
X’tal
RES
WDT
Reset Circuit
(POR)
SIO0
SIO1
Timer 0
Timer 1
Base Timer
LCD Controller
INT0 to 3
Noise Filter
Timer 4
Bus Interface
Port 0
Port 1
Port 3
Port 7
UART1
ADC
RTC
Timer 6
Timer 5
Timer 7
IR
PLA
Flash ROM
PC
ACC
B Register
C Register
ALU
PSW
RAR
RAM
Stack Pointer
Watchdog Timer
On-chip Debugger
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