SAB80C515A-5 SIEMENS [Siemens Semiconductor Group], SAB80C515A-5 Datasheet - Page 72
SAB80C515A-5
Manufacturer Part Number
SAB80C515A-5
Description
8-Bit CMOS Single-Chip Microcontroller Family
Manufacturer
SIEMENS [Siemens Semiconductor Group]
Datasheet
1.SAB80C515A-5.pdf
(108 pages)
- Current page: 72 of 108
- Download datasheet (2Mb)
Special Function Registers
All registers, except the program counter and the four general purpose register banks, reside
in the special function register area. The special function registers include arithmetic registers,
pointers, and registers that provide an interface between the CPU and the on-chip peripherals.
There are also 128 directly addressable bits within the SFR area. All special function registers
are listed in table 2 and table 3.
In table 2 they are organized in numeric order of their addresses. In table 3 they are organized
in groups which refer to the functional blocks of the SAB 80C515A.
Table 2
Special Function Register
Address
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
94
95
96
97
Semiconductor Group
1)
2)
Bit-addressable special function registers
X means that the value is indeterminate and the location is reserved
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
P0
SP
DPL
DPH
(WDTL)
(WDTH)
WDTREL
PCON
TCON
TMOD
TL0
TL1
TH0
TH1
reserved
reserved
P1
XPAGE
reserved
reserved
reserved
reserved
reserved
reserved
Register
1)
1)
1)
Contents
after Reset
0FF
07
00
00
00
00
00
00
00
00
00
00
XX
XX
0FF
XX
XX
XX
XX
XX
XX
XX
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
2)
2)
2)
2)
2)
2)
2)
2)
2)
6-20
Address
98
99
9A
9B
9C
9D
9E
9F
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Register
S0CON
SBUF
reserved
reserved
reserved
reserved
reserved
reserved
P2
reserved
reserved
reserved
reserved
reserved
reserved
reserved
IEN0
IP0
SRELL
reserved
reserved
reserved
reserved
reserved
SAB 80C515A/83C515A-5
1)
1)
1)
Contents
after Reset
00
XX
XX
XX
XX
XX
XX
XX
0FF
XX
XX
XX
XX
XX
XX
XX
00
00
0D9
XX
XX
XX
XX
XX
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2)
2
2)
2)
2)
2)
2)
2)
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