Bits Description
SYMBOL
DESCRIPTION
ADDR
80H
81H
82H
83H
84H
85H
86H
BIT ADDRESS AND SYMBOL
INITIAL
VALUE
MSB
LSB
P0
Port 0
xxxx1111B
00000111B
00000000B
00000000B
00xxxxxxB
SP
Stack Pointer
DPL
Data Pointer Low
Data Pointer High
SPI Status register
SPI control register
SPI data register
Power Control
DPH
SPISTAT
SPICTL
SPIDAT
PCON
TCON
TMOD
TL0
SPIF
SSIG
WCOL
SPEN
-
-
-
-
-
-
DORD MSTR CPOL CPHA SPR1 SPR0 00000100B
00000000B
87H SMOD
88H TF1
SMOD0
TR1
LVF
TF0
M1
POF
TR0
M0
GF1
IE1
GF0
IT1
PD
IE0
M1
IDL
IT0
M0
00110000B
00000000B
00000000B
00000000B
00000000B
00000000B
00000000B
000000xxB
Timer/Counter Control
Register
Timer/Counter Mode
Register
89H GATE
8AH
C/T
GATE
C/T
Timer Low 0
TL1
Timer Low 1
8BH
TH0
Timer High 0
8CH
TH1
Timer High 1
8DH
AUXR
P1
Auxiliary register
Port 1
8EH T0x12
T1x12
P1.6
URM0x6 EADCI ESPI ENLVFI
-
-
90H
91H
92H
93H
94H
95H
96H
P1.7
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0 11111111B
00000000B
P1M0
P1M1
P0M0
P0M1
P2M0
P2M1
SCON
SBUF
P2
P1 configuration 0
P1 configuration 1
P0 configuration 0
P0 configuration 1
P2 configuration 0
P2 configuration 1
Serial Control
00000000B
-
-
-
-
-
-
-
-
xxxx0000B
xxxx0000B
00000000B
00000000B
98H SM0/FE
99H
SM1
SM2
REN
TB8
RB8
TI
RI
00000000B
xxxxxxxxB
11111111B
0x000000B
Serial Buffer
Port 2
A0H
TSTWD
IE
For WDT test
A7H Reserved for testing WDT
Interrupt Enable
Slave Address
Port 3
A8H
A9H
B0H
B1H
B2H
B7H
B8H
B9H
BEH
EA
EPCA_
LVD
ESPI_
ADC
ES
ET1
EX1
P3.2
ET0
EX0 00000000B
00000000B
SADDR
P3
P3.7
-
P3.5
P3.4
P3.3
P3.1
P3.0 1x111111B
0x000000B
P3M0
P3M1
IPH
P3 Configuration 0
P3 Configuration 0
Interrupt Priority High
Interrupt Priority Low
Slave Address Mask
ADC Result Low
ADC Control Register
ADC Result Register
Power Control 2
-
-
0x000000B
-
-
PPCAH
_LVD
PSPIH
_ADC
PSPI
PSH
PS
PT1H PX1H PT0H PX0H x0000000B
IP
PPCA
_LVD
PT1
PX1
PT0
PX0 x0000000B
_ADC
SADEN
ADCVL
ADCTL
ADCV
PCON2
00000000B
-
-
-
-
-
-
ADCV.1 ADCV.0 00000000B
C5H ADCON
SPEED1
SPEED0 ADCI ADCS CHS2 CHS1 CHS0 00000000B
C6H ADCV.9 ADCV.8 ADCV.7 ADCV.6 ADCV.5 ADCV.4 ADCV.3 ADCV.2 00000000B
C7H
-
-
-
-
-
CKS2 CKS1 CKS0 xxxxx000B
MEGAWIN
MPC82x54A Data Sheet
13
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
