Microchip Technology DM183037 Data Sheet

 2012 Microchip Technology Inc.

DS30575A-page 559

R/WO-1

R/WO-1

R/WO-1

R/WO-1

R/WO-1

R/WO-1

R/WO-1

R/WO-1

WPFP7

WPFP6

WPFP5

WPFP4 WPFP3  WPFP2  WPFP1  WPFP0

bit 7

bit 0

P = Programmable bit

WO = Write-Once bit

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 7-0

WPFP<7:0>: Write-Protect Program Flash Pages bits (valid when WPDIS = 0) 
When WPEND = 0: 
Write/erase protect Flash memory pages, starting at Page 0 and ending with Page WPFP<7:0>. 
When WPEND = 1: 
Write/erase protect Flash memory pages, starting at Page WPFP<7:0> and ending with the last page
in user Flash.

U-1

U-1

U-1

U-1

U-1

R/WO-1

R/WO-1

R/WO-1

—

—

—

—

—

WPCFG

WPEND WPDIS

bit 7

bit 0

P = Programmable bit

WO = Write-Once bit

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 7-3

Unimplemented: Program the corresponding Flash Configuration bit to ‘1’

bit 2

WPCFG: Write/Erase Protect Last Page in User Flash bit
1 = Write/erase protection of last page is disabled, regardless of the WPFP<7:0> setting
0 = Write/erase protection of last page is enabled, regardless of the WPFP<7:0> setting

bit 1

WPEND: Write Protection End Page bit
This bit is valid when WPDIS = 0.
When WPEND = 0: 
Write/erase protect Flash Memory pages, starting at Page 0 and ending with Page WPFP<7:0>.
When WPEND = 1: 
Write/erase protect Flash memory pages, starting at Page WPFP<7:0> and ending with the last page
in user Flash.

bit 0

WPDIS: Write-Protect Disable bit
1 = WPFP<7:0>, WPEND and WPCFG bits are ignored
0 = WPFP<7:0>, WPEND and WPCFG bits are enabled; write-protect is active