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PIC18F4520E/MLQTP датащи(PDF) 120 Page - Microchip Technology

номер детали PIC18F4520E/MLQTP
подробное описание детали  28/40/44-Pin Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
PDF  390 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F4520E/MLQTP датащи(HTML) 120 Page - Microchip Technology

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PIC18F2420/2520/4420/4520
DS39631A-page 118
Preliminary
 2004 Microchip Technology Inc.
REGISTER 10-1:
TRISE REGISTER (40/44-PIN DEVICES ONLY)
R-0
R-0
R/W-0
R/W-0
U-0
R/W-1
R/W-1
R/W-1
IBF
OBF
IBOV
PSPMODE
—
TRISE2
TRISE1
TRISE0
bit 7
bit 0
bit 7
IBF: Input Buffer Full Status bit
1
= A word has been received and 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
TRISE2: RE2 Direction Control bit
1
= Input
0
= Output
bit 1
TRISE1: RE1 Direction Control bit
1
= Input
0
= Output
bit 0
TRISE0: RE0 Direction Control bit
1
= Input
0
= Output
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



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