MSU2051 Datasheet, PDF (3/21 Pages) Mosel Vitelic, Corp – low working voltage 16 MHz ROM less MCU

MOSEL VITELIC
Block Diagram
Timer 1
Timer 0
Stack
Pointer
Decoder &
Register
128 bytes
RAM
MSU2051/U2031
4K bytes
ROM
RES
Vdd
Vss
Reset
Circuit
Power
Circuit
Interrupt
Circuit
XTAL2
XTAL1
#EA
#PSEN
ALE
Timming
Generator
Instruction
Register
to pertinent blocks
to whole chip
Acc
to pertinent blocks
Buffer2
Buffer1
ALU
to whole system
PSW
Port 3
Latch
Port 1
Latch
Port 2
Latch
Port 0
Latch
Register
Buffer
DPTR
PC
Increamenter
Program
Counter
Port 3
Driver
8
Port 1
Driver
8
Port 2
Driver
8
Port 0
Driver
8
Rev. 1.0 February 1998
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