SDA5250 Datasheet, PDF (60/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller

SDA 525x
Table 13
Special Function Register Overview
Special Function Register
Description
Symbolic
Name
Arithmetic Registers
Accumulator
B-Register
Program Status Word
System Control Registers
Stack Pointer
Data Pointer (high byte)
Data Pointer (low byte)
Data Pointer Select
Power Control
I/O-Port Registers
Port 0
Port 1
Port 2
Port 3
Port 4
Interrupt Control Registers
Interrupt Enable Flags
Interrupt Priority Flags
Interrupt Priority Flags
Interrupt Control
Timer 0/1 Registers
Timer 0/1 Mode Register
Timer 0/1 Control Register
Timer 1 (high byte)
Timer 0 (high byte)
Timer 1 (low byte)
Timer 0 (low byte)
Watchdog Timer Registers
Watchdog Control Register
Watchdog Reload Register
Watchdog Low Byte
Watchdog High Byte
Capture Compare Timer
Registers
ACC, A
B
PSW
SP
DPH
DPL
DPSEL
PCON
P0
P1
P2
P3
P4
IE
IP0
IP1
IRCON
TMOD
TCON
TH1
TH0
TL1
TL0
WDCON
WDTREL
WDTL
WDTH
RELL
RELH
CAPL
CAPH
IRTCON
Address
Location
(hex.)
Address
Location
(dec.)
Bit Address
MSB … LSB
(hex.)
Initial
Value after
Reset
(hex./bin.)
E0
224
E7 - E0
00
F0
240
F7 - F0
00
D0
208
D7 - D0
00
81
129
–
83
131
–
82
130
–
A2
162
–
87
135
07
00
00
xxxxx000
000xxx00
80
128
87 - 80
FF
90
144
97 - 90
FF
A0
160
A3 - A0
FF
B0
176
B7 - B0
FF
E8
232
E9 - E8
xxxxxx00
A8
168
AF - A8
00
A9
169
–
00
AA
170
–
00
A8
171
–
xxxx0101
89
137
–
00
88
136
8F - 88
00
8D
141
–
00
8C
140
–
00
8B
139
–
00
8A
138
–
00
A7
167
–
00
86
134
–
00
84
132
–
00
85
133
–
00
E1
225
–
xx
E2
226
–
xx
E3
227
–
xx
E4
228
–
xx
E5
229
–
00
Semiconductor Group
60
1998-04-08