PIC18LF452 Microchip Technology, PIC18LF452 Datasheet - Page 100

• Manufacturer Part Number: PIC18LF452
• Description: (PIC18LFxx2) Enhanced FLASH Microcontrollers
• Manufacturer: Microchip Technology

PIC18FXX2
REGISTER 9-1:
DS39564B-page 98
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
TRISE REGISTER
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
OBF: Output Buffer Full Status bit
1 = The output buffer still holds a previously written word
0 = The output buffer has been read
IBOV: Input Buffer Overflow Detect bit (in Microprocessor mode)
1 = A write occurred when a previously input word has not been read
0 = No overflow occurred
PSPMODE: Parallel Slave Port Mode Select bit
1 = Parallel Slave Port mode
0 = General purpose I/O mode
Unimplemented: Read as '0'
TRISE2: RE2 Direction Control bit
1 = Input
0 = Output
TRISE1: RE1 Direction Control bit
1 = Input
0 = Output
TRISE0: RE0 Direction Control bit
1 = Input
0 = Output
Legend:
R = Readable bit
- n = Value at POR
R-0
IBF
(must be cleared in software)
OBF
R-0
R/W-0
IBOV
W = Writable bit
’1’ = Bit is set
PSPMODE
R/W-0
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
U-0
—
TRISE2
R/W-1
2002 Microchip Technology Inc.
x = Bit is unknown
TRISE1
R/W-1
TRISE0
R/W-1
bit 0