MV20556 Datasheet, PDF (2/30 Pages) Mosel Vitelic, Corp – 8 - Bit MCU Mouse Controller

MOSEL VITELIC INC.
Preliminary
MV20556
Block Diagram
Timer 1
Timer 0
Stack
Pointer
Decoder &
Register
128 bytes
RAM
4K bytes
ROM
RES
Vdd
Vss
Reset
Circuit
Power
Circuit
Interrupt
Circuit
XTAL2
XTAL1
Timming
Generator
to pertinent blocks
to whole chip
128
bits
SFR
includes
Acc &
PSW,
etc.
to pertinent blocks
Buffer2
Buffer1
ALU
to whole system
Register
Buffer
DPTR
PC
Increamenter
Program
Counter
Port 3
Latch
Port 1
Latch
Port 3
Driver
7
Port 1
Driver
8
Specifications subject to change without notice, contact your sales representatives for the most recent information.
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PID256** 07/97