PIC16F7X Datasheet, PDF (41/174 Pages) Microchip Technology – 28/40-Pin 8-Bit CMOS FLASH Microcontrollers

PIC16F7X
TABLE 4-9: PORTE FUNCTIONS
Name
Bit# Buffer Type
Function
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
bit0
ST/TTL^{(1) Input/output port pin or read control input in Parallel Slave Port mode or}
analog input.
For RD (PSP mode):
1 = IDLE
0 = Read operation. Contents of PORTD register output to PORTD I/O
pins (if chip selected).
bit1
ST/TTL^{(1) Input/output port pin or write control input in Parallel Slave Port mode}
or analog input.
For WR (PSP mode):
1 = IDLE
0 = Write operation. Value of PORTD I/O pins latched into PORTD
register (if chip selected).
bit2
ST/TTL^{(1) Input/output port pin or chip select control input in Parallel Slave Port}
mode or analog input.
For CS (PSP mode):
1 = Device is not selected
0 = Device is selected
Legend: ST = Schmitt Trigger input, TTL = TTL input
Note 1: Input buffers are Schmitt Triggers when in I/O mode and TTL buffers when in Parallel Slave Port mode.
TABLE 4-10: SUMMARY OF REGISTERS ASSOCIATED WITH PORTE
Addr Name Bit 7 Bit 6 Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
09h PORTE
—
—
—
—
—
RE2
RE1
RE0 ---- -xxx
89h TRISE
IBF OBF IBOV PSPMODE — PORTE Data Direction bits 0000 -111
9Fh ADCON1 —
—
—
—
— PCFG2 PCFG1 PCFG0 ---- -000
Legend: x = unknown, u = unchanged, - = unimplemented, read as '0'. Shaded cells are not used by PORTE.
Value on all
other
RESETS
---- -uuu
0000 -111
---- -000
 2002 Microchip Technology Inc.
DS30325B-page 39