參數(shù)資料
型號(hào): 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): 74/156頁
文件大?。?/td> 2816K
代理商: 16F871
PIC16F870/871
DS30569A-page 74
Preliminary
1999 Microchip Technology Inc.
TABLE 9-8:
REGISTERS ASSOCIATED WITH SYNCHRONOUS MASTER TRANSMISSION
FIGURE 9-9:
SYNCHRONOUS TRANSMISSION
FIGURE 9-10: SYNCHRONOUS TRANSMISSION (THROUGH TXEN)
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
Value on all
other Resets
0Ch
PIR1
PSPIF
(1)
ADIF
RCIF
TXIF
CCP1IF
TMR2IF
TMR1IF
0000 -000
0000 -000
18h
RCSTA
SPEN
RX9
SREN
CREN
FERR
OERR
RX9D
0000 -00x
0000 -00x
19h
TXREG
USART Transmit Register
PSPIE
(1)
ADIE
0000 0000
0000 0000
8Ch
PIE1
RCIE
TXIE
CCP1IE
TMR2IE
TMR1IE
0000 -000
0000 -000
98h
TXSTA
CSRC
TX9
TXEN
SYNC
BRGH
TRMT
TX9D
0000 -010
0000 -010
99h
Legend:
Note 1:
SPBRG
x
= unknown,
-
= unimplemented, read as '0'. Shaded cells are not used for synchronous master transmission.
Bits PSPIE and PSPIF are reserved on the PIC16F870; always maintain these bits clear.
Baud Rate Generator Register
0000 0000
0000 0000
bit 0
bit 1
WORD 1
bit 7
Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
Q3Q4 Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4Q1Q2Q3Q4
bit 2
bit 0
bit 1
bit 7
RC7/RX/DT pin
RC6/TX/CK pin
Write to
TXREG reg
TXIF bit
(Interrupt flag)
TRMT
TXEN bit
’1’
’1’
Note:
Sync master mode; SPBRG = '0'. Continuous transmission of two 8-bit words
WORD 2
TRMT bit
Write word1
Write word2
RC7/RX/DT pin
RC6/TX/CK pin
Write to
TXREG reg
TXIF bit
TRMT bit
bit0
bit1
bit2
bit6
bit7
TXEN bit
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