D301 datasheet(246/416 Pages) MICROCHIP

246 / 416 page

PIC24FJ256GA705 FAMILY

DS30010118D-page 246

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PMCSxCF: EPMP CHIP SELECT x CONFIGURATION REGISTER

R/W-0

U-0

R/W-0

CSDIS

CSP

CSPTEN

BEP

—

WRSP

RDSP

bit 15

bit 8

R/W-0

U-0

ACKP

PTSZ1

PTSZ0

—

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 15

CSDIS: Chip Select x Disable bit

1 = Disables the Chip Select x functionality

0 = Enables the Chip Select x functionality

bit 14

CSP: Chip Select x Polarity bit

1 = Active-high (PMCSx)

0 =Active-low (PMCSx)

bit 13

CSPTEN: PMCSx Port Enable bit

1 = PMCSx port is enabled

0 = PMCSx port is disabled

bit 12

BEP: Chip Select x Nibble/Byte Enable Polarity bit

1 = Nibble/byte enable is active-high (PMBE0, PMBE1)

0 = Nibble/byte enable is active-low (PMBE0, PMBE1)

bit 11

Unimplemented: Read as ‘0’

bit 10

WRSP: Chip Select x Write Strobe Polarity bit

For Slave modes and Master mode when SM = 0:

1 = Write strobe is active-high (PMWR)

0 = Write strobe is active-low (PMWR)

For Master mode when SM = 1:

1 = Enable strobe is active-high (PMENB)

0 = Enable strobe is active-low (PMENB)

bit 9

RDSP: Chip Select x Read Strobe Polarity bit

For Slave modes and Master mode when SM = 0:

1 = Read strobe is active-high (PMRD)

0 = Read strobe is active-low (PMRD)

For Master mode when SM = 1:

1 = Read/write strobe is active-high (PMRD/PMWR)

0 = Read/write strobe is active-low (PMRD/PMWR)

bit 8

SM: Chip Select x Strobe Mode bit

1 = Reads/writes and enables strobes (PMRD/PMWR and PMENB)

0 = Reads and writes strobes (PMRD and PMWR)

bit 7

ACKP: Chip Select x Acknowledge Polarity bit

1 = ACK is active-high (PMACK1)

0 = ACK is active-low (PMACK1)

bit 6-5

PTSZ<1:0>: Chip Select x Port Size bits

11 =Reserved

10 =Reserved

01 = 4-bit port size (PMD<3:0>)

00 = 8-bit port size (PMD<7:0>)

bit 4-0

Unimplemented: Read as ‘0’

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