May 2001

Specifications subject to change without notice,contact your sales representatives for the most recent information.

5/19

Ver 1.3

PID 89516 05/01

SyncMOS Technologies Inc.

SM89516

B

ACC

P4

PSW

T2CON

RC2L

RC2H

TL2

TH2

IP

SCONF

P3

IE

P2

SCON

SBUF

WDTC

P1

TCON

TMOD

TL0

TL1

TH0

TH1

P0

SP

DPL

DPH

(Reserved)

RCON

PCON

Special Function Register (SFR) Memory MAP

$F8

$F0

$E8

$E0

$D8

$D0

$C8

$C0

$B8

$B0

$A8

$A0

$98

$90

$88

$80

$FF

$F7

$EF

$E7

$DF

$D7

$CF

$C7

$BF

$B7

$AF

$A7

$9F

$97

$8F

$87

Note: The text of SFRs with bold type characters are Extension Special Function Registers for

Extension Function Description

SM89516

Memory Structure

The SM89516 is the general 8052 hardware core to integrate the expanded 768B data RAM

Its memory structure follows

FFFF

0000

64K Program

memory space

flash program memory as a single chip micro controller.

and 64KB

general 8052 structure.

Program Memory

The SM89516 has 64K bytes on-chip flash memory which can be used as general program memory.