參數(shù)資料
型號(hào)： SDA20C440
廠商： SIEMENS A G
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, MICROCONTROLLER, PQFP80
封裝： PLASTIC, MQFP-80
文件頁(yè)數(shù)： 20/55頁(yè)
文件大?。?/td> 990K
代理商： SDA20C440
SDA 20C440
Semiconductor Group
27
OE:
Overwrite Error Flag
This flag is set by hardware when an overwrite error occurred. It must be cleared by
software.
FE:
Framing Error Flag
This flag is set by hardware when a framing error occurred. It must be cleared by
software.
PE:
Parity Error Flag
This flag is set by hardware when a parity error occurred. It must be cleared by software.
MAI:
Masking Address Interrupt
= 1 address interrupt is enabled (only in mode III)
TB8:
Transmitter Data Bit
In mode III this bit is transmitted as the nineth data bit.
RB8:
Receiver Data Bit
In mode III the ninety received bit is written to RB8.
TI:
Transmitter Interrupt
This flag is set by hardware when the start bit is transmitted and must be cleared by
software.
RI:
Receiver Interrupt
This flag is set by hardware when the stop bit is received and must be cleared by
software.
Default after reset: 0000 0000
Baudrate Register
With this register the baud rate is adjusted.
The contents of this register defines the reload value of the baud rate reload counter.
MSB
SFR-Address: C0H
LSB
SACON1: Serial Port Control Register 1
OE
FE
PE
MAI
TB8
RB8
TI
RI
MSB
SFR-Address: C2H
LSB
SABAUD: Serial Port Baud Rate Counter
BD7
BD6
BD5
BD4
BD3
BD2
BD1
BD0
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