Information

PIC18F8722 FAMILY
DS39646C-page 302 © 2008 Microchip Technology Inc.
REGISTER 25-4: CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)
(1)
R/P-1 R/P-1 R/P-1 R/P-1 U-0 U-0 R/P-1 R/P-1
WAIT BW ABW1 ABW0
— —PM1PM0
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 7 WAIT: External Bus Data Wait Enable bit
1 = Wait selections are unavailable for table reads and table writes
0 = Wait selections for table reads and table writes are determined by the WAIT<1:0> bits
bit 6 BW: Data Bus Width Select bit
1 = 16-bit External Bus mode
0 = 8-bit External Bus mode
bit 5-4 ABW<1:0>: Address Bus Width Select bits
11 = 20-bit address bus
10 = 16-bit address bus
01 = 12-bit address bus
00 = 8-bit address bus
bit 3-2 Unimplemented: Read as ‘0’
bit 1-0 PM<1:0>: Processor Data Memory Mode Select bits
11 = Microcontroller mode
10 = Microprocessor mode
01 = Microprocessor with Boot Block mode
00 = Extended Microcontroller mode
Note 1: This register is unimplemented in PIC18F6527/6622/6627/6722 devices.