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| C509-L_97 Datasheet, PDF (47/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller | |||
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Memory Organization
C509-L
Table 3-4
Special Function Registers - Functional Blocks (contâd)
Block
Symbol Name
Address Contents after
Reset
MUL/DIV
Unit
ARCON
MD0
MD1
MD2
MD3
MD4
MD5
Arithmetic Control Register
Multiplication/Division Register 0
Multiplication/Division Register 1
Multiplication/Division Register 2
Multiplication/Division Register 3
Multiplication/Division Register 4
Multiplication/Division Register 5
EFH
E9H
EAH
EBH
ECH
EDH
EEH
0XXXXXXXB 3)
XXH 3)
XXH 3)
XXH 3)
XXH 3)
XXH 3)
XXH 3)
Timer 0 /
Timer 1
TCON
TH0
TH1
TL0
TL1
TMOD
PRSC 2)
Timer Control Register
Timer 0, High Byte
Timer 1, High Byte
Timer 0, Low Byte
Timer 1, Low Byte
Timer Mode Register
Prescaler Control Register
88H 1)
8CH
8DH
8AH
8BH
89H
B4H
00H
00H
00H
00H
00H
00H
11010101B 3)
Ports
P0 4)
DIR0 4)
P1 4)
DIR1 4)
P2 4)
DIR2 4)
P3 4)
DIR3 4)
P4 4)
DIR4 4)
P5 4)
DIR5 4)
P6 4)
DIR6 4)
P7
P8
P9 4)
DIR9 4)
Port 0
Direction Register Port 0
Port 1
Direction Register Port 1
Port 2
Direction Register Port 2
Port 3
Direction Register Port 3
Port 4
Direction Register Port 4
Port 5
Direction Register Port 5
Port 6
Direction Register Port 6
Port 7, Analog/Digital Input
Port 8, Analog/Digital Input
Port 9
Direction Register Port 9
80H 1)
80H 1)
90H 1)
90H 1)
A0H 1)
A0H 1)
B0H 1)
B0H 1)
E8H 1)
E8H 1)
F8H 1)
F8H 1)
FAH
FAH
DBH
DDH
F9H
F9H
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
FFH
--
--
FFH
FFH
Power
Saving
Modes
PCON
Power Control Register
87H
00H
1) Bit-addressable special function registers
2) This special function register is listed repeatedly since some bits of it also belong to other functional blocks.
3) X means that the value is indeterminate and the location is reserved
4) Register is mapped by bit PDIR.
5) Register is mapped by bit RMAP.
Semiconductor Group
3-22
1997-10-01
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