PIC18F87J11_12 Datasheet, PDF (169/466 Pages) Microchip Technology – 64/80-Pin, High-Performance, 1-Mbit Flash Microcontrollers

PIC18F87J11 FAMILY
REGISTER 12-2: PMCONL: PARALLEL PORT CONTROL LOW BYTE REGISTER
R/W-0
CSF1
bit 7
R/W-0
CSF0
R/W-0⁽¹⁾
ALP
R/W-0⁽¹⁾
CS2P
R/W-0⁽¹⁾
CS1P
R/W-0
BEP
R/W-0
WRSP
R/W-0
RDSP
bit 0
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
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
CSF<1:0>: Chip Select Function bits
11 = Reserved
10 = PMCS1 and PMCS2 function as chip select
01 = PMCS2 functions as chip select, PMCS1 is used as Address Bit 14 (PMADDRH Address Bit 6)
00 = PMCS2 and PMCS1 are used as Address Bits 15 and 14 (PMADDRH Address Bits 7 and 6)
ALP: Address Latch Polarity bit⁽¹⁾
1 = Active-high (PMALL and PMALH)
0 = Active-low (PMALL and PMALH)
CS2P: Chip Select 2 Polarity bit⁽¹⁾
1 = Active-high (PMCS2)
0 = Active-low (PMCS2)
CS1P: Chip Select 1 Polarity bit⁽¹⁾
1 = Active-high (PMCS1/PMCS)
0 = Active-low (PMCS1/PMCS)
BEP: Byte Enable Polarity bit
1 = Byte enable active-high (PMBE)
0 = Byte enable active-low (PMBE)
WRSP: Write Strobe Polarity bit
For Slave modes and Master mode 2 (PMMODEH<1:0> = 00, 01, 10):
1 = Write strobe active-high (PMWR)
0 = Write strobe active-low (PMWR)
For Master mode 1 (PMMODEH<1:0> = 11):
1 = Enable strobe active-high (PMENB)
0 = Enable strobe active-low (PMENB)
RDSP: Read Strobe Polarity bit
For Slave modes and Master mode 2 (PMMODEH<1:0> = 00, 01, 10):
1 = Read strobe active-high (PMRD)
0 = Read strobe active-low (PMRD)
For Master mode 1 (PMMODEH<1:0> = 11):
1 = Read/write strobe active-high (PMRD/PMWR)
0 = Read/write strobe active-low (PMRD/PMWR)
Note 1: These bits have no effect when their corresponding pins are used as address lines.
 2007-2012 Microchip Technology Inc.
DS39778E-page 169