参数资料
型号: SDA20C440
厂商: SIEMENS A G
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQFP80
封装: PLASTIC, MQFP-80
文件页数: 7/55页
文件大小: 990K
代理商: SDA20C440
SDA 20C440
Semiconductor Group
15
2.2.3 Special Function Registers
Accesses to peripheral and CPU functions are done by writing to or reading from special function
registers.
*) These registers are bit-addressable
Register Function
Symbolic Name
Address
(hexadecimal)
Value after Reset
Timer High Byte
Timer Low Byte
Timer Reload Value High Byte
Timer Reload Value Low Byte
Timer Control Register 0
TH
TL
TRH
TRL
TCON
F9H
F7H
F6H
F5H
DCH
00H
ADC-Control Register *
ADC-Address Register
ADC-Data Register
ADCON
ADADR
ADDAT
90H
91H
92H
00H
Data Pointer High
Data Pointer Low
Stack Pointer
Accumulator *
B-Register *
Program Status Word *
DPH
DPL
SP
A
B
PSW
83H
82H
81H
E0H
F0H
D0H
00H
07H
00H
Oscillator Control Register
OSCON
9AH
01H
Interrupt Enable Register 0
Interrupt Enable Register 2
Interrupt Request Register *
IENA0
IENA2
IREQ0
C8H
C9H
A8H
00H
02H
Serial Port Control Register 0
Serial Port Control Register 1 *
Serial Port Transmit/Receive Buffer
Serial Port Prescaler
Serial Port Baud Rate Counter
SACON0
SACON1
SABUF
SASCAL
SABAUD
C1H
C0H
C3H
C4H
C2H
00H
Port 0 Register *
Port 0 Direction Register
Port 1 Register *
Port 2 Register
Port 2 Direction Register
Port 2 Function Register
P0
P0PDR
P1
P2
P2PDR
P2PFR
80H
84H
88H
8FH
94H
95H
00H
LCD-Address Register
LCD-Code Register
LCD-Bit Data Register
LCD-Word Data Register
LCD-Mode Register *
LCDADR
LCDCOD
LCDBIT
LCDWRD
LCDMOD
BCH
B9H
BBH
BAH
B8H
00H
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