PIC16LC63A-04 Datasheet, PDF (36/184 Pages) Microchip Technology – 8-Bit CMOS Microcontrollers with A/D Converter

PIC16C63A/65B/73B/74B
REGISTER 5-1: TRISE REGISTER (ADDRESS 89h)
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 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
TRISE2: Direction Control bit for pin RE2/CS/AN7
1 = Input
0 = Output
bit 1
TRISE1: Direction Control bit for pin RE1/WR/AN6
1 = Input
0 = Output
bit 0
TRISE0: 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
TABLE 5-10: 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
PORTE —
—
—
—
—
RE2
RE1
RE0 ---- -xxx ---- -uuu
89h
TRISE
IBF OBF IBOV PSPMODE — PORTE Data Direction bits 0000 -111 0000 -111
9Fh
ADCON1 —
—
—
—
— PCFG2 PCFG1 PCFG0 ---- -000 ---- -000
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by PORTE.
DS30605C-page 36
 2000 Microchip Technology Inc.