
W79E804A/803A/802A
- 18 -
Continued
SYMBOL
DEFINITION
ADD
A9H
BIT_ADDRESS, SYMBOL LSB RESET
SADDR
Slave address
(AF)
EA
KBF
(AE)
-
BOD
(AD)
EBO
BOI
(AC)
ES
LPBOV SRST
(AB)
ET1
(AA)
EX1
-
(A9)
ET0
0
(A8)
EX0
DPS
(A0)
XTAL2
CLKOUT
(98)
RI
00000000B
IE
Interrupt enable
A8H
0x000000B
AUXR1
KBI
AUX function register
Keyboard Interrupt
A2H
A1H
000x0x00B
00000000B
P2
Port 2
A0H
(A7)
-
(A6)
-
(A5)
-
(A4)
-
(A3)
-
(A2)
-
(A1)
XTAL1
xxxxxx11B
SBUF
Serial buffer
99H
(9F)
SM0/FE
(9E)
SM1
(9D)
SM2
(9C)
REN
(9B)
TB8
(93)
/INT0
SDL
T0M
GATE
(8B)
IE1
GF1
(9A)
RB8
(92)
T0
SCL
-
C/T
(8A)
IT1
GF0
(82)
BRAKE
CIN2A
KB2
(99)
TI
xxxxxxxxB
SCON
Serial control
98H
00000000B
DIVM
uC clock divide register
95H
00000000B
P1
Port 1
90H
(97)
PWM2
(96)
PWM1
(95)
/RST
(94)
/INT1
(91)
RXD
(90)
TXD
11111111B
CKCON
TH1
TH0
TL1
TL0
TMOD
Clock control
Timer high 1
Timer high 0
Timer low 1
Timer low 0
Timer mode
8EH
8DH
8CH
8BH
8AH
89H
-
GATE
(8F)
TF1
SMOD
-
C/T
(8E)
TR1
SMOD0
-
M1
(8D)
TF0
BOF
T1M
M0
(8C)
TR0
POR
-
M1
(89)
IE0
PD
(81)
PWM0
CIN2B
KB1
-
M0
(88)
IT0
IDL
(80)
PWM3
CMP2
KB0
xxx00xxxB
00000000B
00000000B
00000000B
00000000B
00000000B
TCON
Timer control
88H
00000000B
PCON
DPH
DPL
SP
Power control
Data pointer high
Data pointer low
Stack pointer
87H
83H
82H
81H
00xx0000B
00000000B
00000000B
00000111B
P0
Port 0
80H
(87)
T1
KB7
(86)
CMP1
KB6
(85)
CMPREF
KB5
(84)
CIN1A
KB4
(83)
CIN1B
KB3
11111111B
Table
8-2: Special Function Registers