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MG87FE/L2051/4051/6051
Preliminary, v 1.03
7.2. SFR Bit Assignment
SYMBOL
SP
DPL
DPH
PCON
TCON
TMOD
TL0
TL1
TH0
TH1
AUXR
CKCON3
P1
ACSR
SCON
SBUF
AUXR1
IE
SADDR
P3
IPH
IPL
SADEN
CKCON2
XICON
CKCON
PSW
P3WKPE
P1WKPE
CCON
CMOD
WDTCR
IFD
IFADRH
IFADRL
IFMT
IAPLB
DESCRIPTION
Stack Pointer
Data Pointer Low
Data Pointer High
Power Control
Timer Control
Timer Mode
Timer Low 0
Timer Low 1
Timer High 0
Timer High 1
Auxiliary
Clock Control 3
Port 1
Analog Comp. Reg.
Serial Control
Serial Buffer
Auxiliary 1
Interrupt Enable
Slave Address
Port 3
Interrupt Priority
High
Interrupt Priority Low
Slave Address Mask
Clock Control 2
Ext. Interrupt Control
Clock Control
Program Status
Word
P3 Wake-up Enable
P1 Wake-up Enable
Counter Control
Reg.
Counter Mode Reg.
Watch-dog-timer
Control register
ISP Flash data
ISP Flash address
High
ISP Flash Address
Low
ISP Mode Table
IAP Low Boundary
ADDRESS
81H
82H
83H
87H
88H
89H
8AH
8BH
8CH
8DH
8EH
8FH
90H
97H
98H
99H
A2H
A8H
A9H
B0H
B7H
B8H
B9H
BFH
C0H
C7H
D0H
D6H
D7H
D8H
D9H
E1H
E2H
E3H
E4H
E5H
Note 1
-
-
BIT ADDRESS AND SYMBOL
LSB
INITIAL
VALUE
00000111B
00000000B
00000000B
00010000B
00000000B
SMOD
SMOD0 PWMEN
00000000B
00000000B
00000000B
00000000B
00000000B
INT3H INT2H P15FS P14FS P13FS P12FS P11PU P10PU
00000000B
-
-
-
-
-
-
PWDEX EN6TR
xxxxxx0xB
97H
96H
95H
94H
93H
92H
91H
90H
11111111B
ACIDX
-
-
ACF ACEN ACM2 ACM1 ACM0
0xx00000B
9FH
9EH
9DH
9CH
9BH
9AH
99H
98H
00000000B
SM0
/FE
P14FD
AFH
EA
B7H
SM1
SM2
REN
TB8
RB8
TI
RI
9FH
TF1
GATE
9EH
TR1
C/T
9DH
TF0
M1
POF
9CH
TR0
M0
GF1
9BH
IE1
GATE
GF0
9AH
IT1
C/T
PD
89H
IE0
M1
IDL
88H
IT0
M0
-
AEH
EAC
B6H
-
ADH
-
ACH
ES
B4H
T0
PSH
BCH
PS
GF2
ABH
ET1
B3H
INT1
PT1H
BBH
PT1
-
AAH
EX1
B2H
INT0
PX1H
BAH
PX1
-
A9H
ET0
B1H
TXD
PT0H
B9H
PT0
-
A8H
EX0
xxxxxxxxB
0xxx0xxxB
0xx00000B
00000000B
1x111111B
B5H
T1
PX3H/ PX2H/
PTCH PACH
BFH
BEH
PAC
BDH
B0H
RXD
PX0H
00x00000B
B8H
PX0
xxx00000B
00000000B
OSCDR EN6TR XCKS5 XCKS4 XCKS3 XCKS2 XCKS1 XCKS0
xx001010B
C7H
C6H
C5H
C4H
C3H
C2H
C1H
C0H
00000000B
PX3/
EX3
IE3
IT3
PX2
EX2
IE2
IT2
PTC
-
-
-
-
-
SCKS2 SCKS1 SCKS0
xxxxx000B
D7H
D6H
D5H
D4H
D3H
D2H
D1H
D0H
00000000B
CY
AC
F0
RS1
RS0
OV
-
P
P37WE
P35WE P34WE P33WE P32WE P31WE P30WE
0x000000B
P17WE P16WE P15WE P14WE P13WE P12WE P11WE P10WE
00000000B
CF
CR
-
-
-
-
-
-
00xxxxxxB
CIDL
WRF
POS2
POS1
ENW
POS0
CLW
CPS2
WIDL
CPS1
PS2
CPS0
PS1
ECF
PS0
-
00000000B
0x000000B
11111111B
00000000B
00000000B
-
-
MS3
MS2
MS1
MS0
xxxx0000B
11111111B
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Megawin Technology Co., Ltd. 2009 All rights reserved.
QP-7300-03D
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