SyncMOS Technologies Inc.
September 2002
Special Function Register (SFR)
SM89516A
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
$F0
$E8
$E0
$D8
$D0
$C8
$C0
$B8
$B0
$A8
$A0
$98
$90
$88
$80
ACC
P4
PSW
T2CON
IP
P3
IE
P2
SCON
P1
TCON
P0
TMOD
SP
TL0
DPL
TL1
DPH
TH0
(Reserved)
TH1
RCON
DBANK
PCON
SBUF
SPWMC
P1CON
SPWMD4
SPWMD0
SPWMD1
SPWMD2
SPWMD3
WDTC
WDTKEY
T2MOD
RCAP2L
RCAP2H
TL2
TH2
SCONF
B
$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 SM89516A
Addr
85H
86H
97H
9BH
9FH
A3H
A4H
A5H
A6H
A7H
ACH
BFH
C8H
C9H
D8H
SFR
RCON
DBANK
WDTKEY
P1CON
WDTC
SPWMC
SPWMD0
SPWMD1
SPWMD2
SPWMD3
SPWMD4
SCONF
T2CON
T2MOD
P4
Reset
******00
0***0001
00H
00000***
0*0**000
******00
00H
00H
00H
00H
00H
0*****00
00H
******00
****1111
P4.3
P4.2
SPWMD04 SPWMD03 SPWMD02 SPWMD01 SPWMD00
SPWMD14 SPWMD13 SPWMD12 SPWMD11 SPWMD10
SPWMD24 SPWMD23 SPWMD22 SPWMD21 SPWMD20
SPWMD34 SPWMD33 SPWMD32 SPWMD31 SPWMD30
SPWMD44 SPWMD43 SPWMD42 SPWMD41 SPWMD40
WDR
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
BRM02
BRM12
BRM22
BRM32
BRM42
BSE
SPWME4
WDTE
SPWME3
SPWME2
CLEAR
SPWME1
BS3
SPWME0
PS2
PS1
SPFS1
BRM01
BRM11
BRM21
BRM31
BRM41
OME
C/T2
T2OE
P4.1
PS0
SPFS0
BRM00
BRM10
BRM20
BRM30
BRM40
ALEI
CP/RL2
DCEN
P4.0
BS2
7
6
5
4
3
2
1
RAMS1
BS1
0
RAMS0
BS0
WDTKEY7 WDTKEY6 WDTKEY5 WDTKEY4 WDTKEY3 WDTKEY2 WDTKEY1 WDTKEY0
Specifications subject to change without notice,contact your sales representatives for the most recent information.
5/25
Ver 1.2
SM89516A 09/02
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
