參數(shù)資料
型號(hào): SAB80C517-N16
廠商: SIEMENS A G
元件分類(lèi): 微控制器/微處理器
英文描述: 8-Bit CMOS Single-Chip Microcontroller
中文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC84
封裝: PLASTIC, LCC-84
文件頁(yè)數(shù): 18/56頁(yè)
文件大小: 668K
代理商: SAB80C517-N16
SAB 80C515/80C535
Semiconductor Group
17
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 1 and table 2.
In table 1 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 80C515.
Table 1
Special Function Register
Address
Register
Contents
after Reset
Address
Register
Contents
after Reset
80
H
81
H
82
H
83
H
84
H
85
H
86
H
87
H
88
H
89
H
8A
H
8B
H
8C
H
8D
H
8E
H
8F
H
90
H
91
H
92
H
93
H
94
H
95
H
96
H
97
H
P0
1)
SP
DPL
DPH
reserved
reserved
reserved
PCON
0FF
H
07
H
00
H
00
H
XX
H
XX
H
XX
H
000X 0000
B
00
H
00
H
00
H
00
H
00
H
00
H
XX
H
XX
H
0FF
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
2)
2)
2)
2)
98
H
99
H
9A
H
9B
H
9C
H
9D
H
9E
H
9F
H
A0
H
A1
H
A2
H
A3
H
A4
H
A5
H
A6
H
A7
H
A8
H
A9
H
AA
H
AB
H
AC
H
AD
H
AE
H
AF
H
SCON
SBUF
reserved
reserved
reserved
reserved
reserved
reserved
1)
00
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
2)
2)
2)
2)
2)
2)
2)
TCON
1)
TMOD
TL0
TL1
TH0
TH1
reserved
reserved
2)
2)
P2
1)
reserved
reserved
reserved
reserved
reserved
reserved
reserved
0FF
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
00
H
X000 0000
B
XX
H
XX
H
XX
H
XX
H
XX
H
XX
H
2)
2)
2)
2)
2)
2)
2)
P1
1)
reserved
reserved
reserved
reserved
reserved
reserved
reserved
2)
2)
2)
2)
2)
2)
2)
IEN0
1)
IP0
reserved
reserved
reserved
reserved
reserved
reserved
2
)
2)
2)
2)
2)
2)
2)
1)
Bit-addressable Special Function Register
2)
X means that the value is indeterminate and the location is reserved
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