SM39R08A5
8-Bit Micro-controller
with 8KB Flash
& 256B RAM embedded
Special Function Register (SFR)
A map of the Special Function Registers is shown as below:
Hex\Bin
F8
F0
E8
E0
D8
D0
C8
C0
B8
B0
A8
A0
98
90
88
80
X000
IICS
B
ACC
PSW
X001
IICCTL
X010
IICA1
X011
IICA2
X100
IICRWD
X101
IICEBT
X110
CMP0CON
OPPIN
X111
TAKEY
SWRES
Bin/Hex
FF
F7
EF
E7
DF
D7
CF
C7
BF
B7
AF
A7
9F
97
8F
87
ISPFAH
ISPFAL
P3M0
ISPFD
P3M1
ISPFC
LVC
PWMMDH PWMMDL
IRCON
IEN1
P3
IEN0
SCON
TCON
IP1
IP0
RSTS
SBUF
AUX
TMOD
SP
TL0
DPL
TL1
DPH
TH0
DPL1
TH1
DPH1
CKCON
IEN2
IRCON2
IFCON
PCON
SRELH
SRELL
ADCC1
PWMD0H PWMD0L PWMD1H
PWMC
ADCDH
WDTC
ADCDL
ADCC2
PWMD1L
WDTK
ADCCS
PWMD2H PWMD2L PWMD3H PWMD3L
Note: Special Function Registers reset values and description for SM39R08A5
Register
SP
DPL
DPH
DPL1
DPH1
PCON
TCON
TMOD
TL0
TL1
TH0
TH1
CKCON
IFCON
Location
81h
82h
83h
84h
85h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
8Fh
Reset value
07h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
10h
00h
Stack Pointer
Description
Data Pointer 0 low byte
Data Pointer 0 high byte
Data Pointer 1 low byte
Data Pointer 1 high byte
Power Control
Timer/Counter Control
Timer Mode Control
Timer 0, low byte
Timer 1, low byte
Timer 0, high byte
Timer 1, high byte
Clock control register
Interface control register
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M067
Ver B SM39R08A5 04/22/2013
-7-
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
