MDT10P257 Datasheet, PDF (17/18 Pages) Micon Design Technology Corporation – 8-bit micro-controlle

13. Block Diagram
MDT10P257
Two Levels Stack
11 bits
11 bits
EPROM
2048× 14
14 bits
Program Counter
Instruction
Register
MCLR
OSC2
OSC1
Oscillator Circuit
Instruction
Decoder
RAM
72*8
Port A
PULL
HIGH
Port
PA0~PA3
4 bits
Special Register
D0~D7
PULLPort B
HIGH
Port
PB0~PB7
8 bits
Control Circuit
Power on Reset
PED
Working Register
ALU
Data 8-bit
Status Register
PULL
HIGHPort C
Port
PC0~PC7
8 bits
8-bit Timer/Counter
Prescaler
WDT/OST
Timer
RTCC
This specification are subject to be changed without notice. Any latest information please visit our web site
(http;//www.mdtic.com.tw) for detail
P. 17
2011/02 VER 1.1