PIC16LF876A-I Datasheet, PDF (50/234 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers

PIC16F87XA
TABLE 4-10: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
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
09h
89h
9Fh
Legend:
PORTE
—
—
—
—
—
RE2 RE1 RE0 ---- -xxx
TRISE
IBF OBF IBOV PSPMODE — PORTE Data Direction bits 0000 -111
ADCON1 ADFM ADCS2 —
—
PCFG3 PCFG2 PCFG1 PCFG0 00-- 0000
x = unknown, u = unchanged, - = unimplemented, read as ‘0’. Shaded cells are not used by PORTE.
---- -uuu
0000 -111
00-- 0000
REGISTER 4-1: TRISE REGISTER (ADDRESS 89h)
R-0
R-0
R/W-0
R/W-0
U-0
IBF
OBF
IBOV PSPMODE —
bit 7
R/W-1
Bit 2
R/W-1
Bit 1
R/W-1
Bit 0
bit 0
Parallel Slave Port Status/Control Bits:
bit 7
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 = PORTD functions in Parallel Slave Port mode
0 = PORTD functions in general purpose I/O mode
bit 3
Unimplemented: Read as ‘0’
PORTE Data Direction Bits:
bit 2
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
Legend:
R = Readable bit
- n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
DS39582C-page 50
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