Special Function Register
F8
F0
E8
E0
D8
D0
C8
C0
B8
B0
A8
A0
98
90
88
80
B
P4
ACC
PSW
T2CON
XICON
IP
P3
IE
P2
SCON
P1
TCON
P0
WDTCR
IFD
IFADRH
IFADRL
IFMT
SCMD
ISPCR
T2MOD
SADEN
RCAP2L
RCAP2H
TL2
TH2
IPH
SADDR
AUXR1
SBUF
TMOD
SP
TL0
DPL
Reserved
TL1
DPH
TH0
TH1
AUXR
PCON
INITIAL VALUE
11111111B
00000111B
00000000B
00000000B
IDL
01110000B
IT0
00000000B
M0
00000000B
00000000B
00000000B
00000000B
00000000B
AO
xxxxx00B
T2
11111111B
RI
00000000B
xxxxxxxxB
11111111B
DPS
xxxx0xx0B
EX0
00000000B
00000000B
RXD
11111111B
PX0H
x0000000B
PX0
x0000000B
00000000B
IT2
CP/RL
00000000B
DCEN
xxxxxx00B
00000000B
00000000B
00000000B
00000000B
P
00000000B
00000000B
PS0
xx000000B
11111111B
00000000B
00000000B
xxxxx000B
xxxxxxxxB
000xx000B
xxxx1111B
00000000B
SYMBOL
P0
SP
DPL
DPH
PCON
TCON
TMOD
TL0
TL1
TH0
TH1
AUXR
P1
SCON
SBUF
P2
AUXR1
IE
SADDR
P3
IPH
IP
SADEN
XICON
T2CON
T2MOD
RCAP2L
RCAP2H
TL2
TH2
PSW
ACC
WDTCR
IFD
IFADRH
IFADRL
IFMT
SCMD
ISPCR
P4
B
DESCRIPTION
Port 0
Stack Pointer
Data Pointer Low
Data Pointer High
Power Control
SMOD SMOD0
-
POF GF1
Timer Control
TF1
TR1
TF0 TR0
IE1
Timer Mode
GATE
C//T
M1
M0 GATE
Timer Low 0
Timer Low 1
Timer High 0
Timer High 1
Auxiliary
Port 1
Serial Control
SM0 /FE M1
SM2 REN TB8
Serial Buffer
Port 2
Auxiliary 1
GF2
Interrupt Enable
EA
ET2 ES
ET1
Slave Address
Port 3
RD
WR
T1
T0
INT1
Interrupt Priority High
PX3H PX2H PT2H PSH PT1H
Interrupt Priority Low
PT2 PS
PT1
Slave Address Mask
External Interrupt Control
PX3
EX3
IE3
IT3
PX2
Timer 2 Control
TF2
EXF2 RCLK TCLK EXEN2
Timer2 mode
Timer2 Capture Low
Timer2 Capture High
Timer Low 2
Timer High 2
Program Status Word
CY
AC
F0 RS1 RS0
Accumulator
Watch-dog-timer Control
-
-
ENW CLW WIDL
register
ISP Flash data
ISP Flash Address High
ISP Flash Address Low
ISP Mode Table
-
-
-
-
-
ISP Serial Command
ISP Control Register
ISPEN
BS SRST
-
-
Port 4
-
-
-
-
EBH
B Register
GF0
IT1
C//T
PD
IE0
M1
ERAM
T2EX
RB8
TI
EX1
ET0
INT0 TXD
PX1H PT0H
PX1 PT0
EX2
TR2
IE2
C/T2
T2OE
OV
PS2
-
PS1
MS2
MS1
MS0
ICK0
E8H
ICK2 ICK1
EAH E9H
8
MPC89x53A Data Sheet
MEGAWIN
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
