參數(shù)資料
型號: 16F871
廠商: Microchip Technology Inc.
英文描述: CAT 5E CROSSOVER PATCH CORD CABLE GREEN 6 FT
中文描述: 28/40-Pin 8位CMOS閃存微控制器
文件頁數(shù): 64/156頁
文件大?。?/td> 2816K
代理商: 16F871
PIC16F870/871
DS30569A-page 64
Preliminary
1999 Microchip Technology Inc.
REGISTER 9-2:
RCSTA: RECEIVE STATUS AND CONTROL REGISTER
(ADDRESS 18h)
R/W-0
SPEN
bit7
R/W-0
RX9
R/W-0
SREN
R/W-0
CREN
R/W-0
ADDEN
R-0
FERR
R-0
OERR
R-x
RX9D
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
read as ‘0’
- n = Value at POR reset
bit 7:
SPEN:
Serial Port Enable bit
1
= Serial port enabled (Configures RC7/RX/DT and RC6/TX/CK pins as serial port pins)
0
= Serial port disabled
RX9
: 9-bit Receive Enable bit
1
= Selects 9-bit reception
0
= Selects 8-bit reception
SREN
: Single Receive Enable bit
Asynchronous mode
Don’t care
Synchronous mode - master
1
= Enables single receive
0
= Disables single receive
This bit is cleared after reception is complete.
Synchronous mode - slave
Unused in this mode
CREN
: Continuous Receive Enable bit
Asynchronous mode
1
= Enables continuous receive
0
= Disables continuous receive
Synchronous mode
1
= Enables continuous receive until enable bit CREN is cleared (CREN overrides SREN)
0
= Disables continuous receive
ADDEN:
Address Detect Enable bit
Asynchronous mode 9-bit (RX9 = 1)
1
= Enables address detection, enable interrupt and load of the receive burffer when RSR<8> is set
0
= Disables address detection, all bytes are received, and ninth bit can be used as parity bit
FERR
: Framing Error bit
1
= Framing error (Can be updated by reading RCREG register and receive next valid byte)
0
= No framing error
OERR
: Overrun Error bit
1
= Overrun error (Can be cleared by clearing bit CREN)
0
= No overrun error
RX9D:
9th bit of received data (Can be parity bit)
bit 6:
bit 5:
bit 4:
bit 3:
bit 2:
bit 1:
bit 0:
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