參數(shù)資料
型號: PIC16CR74-I/L
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 108/172頁
文件大?。?/td> 2964K
代理商: PIC16CR74-I/L
PIC16CR7X
DS21993C-page 38
2007 Microchip Technology Inc.
REGISTER 4-1:
TRISE: (ADDRESS 89h)
R-0
R/W-0
U-0
R/W-1
IBF
OBF
IBOV
PSPMODE
Bit 2
Bit 1
Bit 0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
Parallel Slave Port Status/Control bits:
IBF: Input Buffer Full Status bit
1
= A word has been received and is waiting to be read by the CPU
0
= No word has been received
bit 6
OBF: Output Buffer Full Status bit
1
= The output buffer still holds a previously written word
0
= The output buffer has been read
bit 5
IBOV: Input Buffer Overflow Detect bit (in Microprocessor mode)
1
= A write occurred when a previously input word has not been read
(must be cleared in software)
0
= No overflow occurred
bit 4
PSPMODE: Parallel Slave Port Mode Select bit
1
= Parallel Slave Port mode
0
= General Purpose I/O mode
bit 3
Unimplemented: Read as ‘0’
bit 2
PORTE Data Direction bits:
Bit 2: Direction Control bit for pin RE2/CS/AN7
1
= Input
0
= Output
bit 1
Bit 1: Direction Control bit for pin RE1/WR/AN6
1
= Input
0
= Output
bit 0
Bit 0: Direction Control bit for pin RE0/RD/AN5
1
= Input
0
= Output
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