SyncMOS Technologies International, Inc.

SM89516

8-Bits Micro-controller

With 64KB flash & 1KB RAM embedded

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

Ver 2.1 SM89516 08/2006

5

Special Function Register (SFR)

The address $80 to $FF can be accessed by direct addressing mode only.

Address $80 to $FF is SFR area.

The following table lists the SFRs which are identical to general 8052, as well as SM89516A Extension SFRs.

Special Function Register (SFR) Memory Map

$F8

$FF

$F0

B

$F7

$E8

$EF

$E0

ACC

$E7

$D8

P4

$DF

$D0

PSW

$D7

$C8

T2CON

RCAP2L

RCAP2H

TL2

TH2

$CF

$C0

$C7

$B8

IP

SCONF

$BF

$B0

P3

$B7

$A8

IE

$AF

$A0

P2

$A7

$98

SCON

SBUF

WDTC

$9F

$90

P1

$97

$88

TCON

TMOD

TL0

TL1

TH0

TH1

$8F

$80

P0

SP

DPL

DPH

RCON

PCON

$87

Note: The text of SFRs with bold type characters are Extension Special Function Registers for SM89516

Extension Function Description

1. Memory Structure

The SM89516 is the general 8052 hardware core to integrate the expanded 768B data RAM and 64KB flash

program memory as a single chip micro controller. Its memory structure follows general 8052 structure.

1.1 Program Memory

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