Datasheet
PIC18F6525/6621/8525/8621
DS39612C-page 262 2003-2013 Microchip Technology Inc.
REGISTER 24-4: CONFIG3L: CONFIGURATION REGISTER 3 LOW (BYTE ADDRESS 300004h)
(1)
REGISTER 24-5: CONFIG3H: CONFIGURATION REGISTER 3 HIGH (BYTE ADDRESS 300005h)
R/P-1 U-0 U-0 U-0 U-0 U-0 R/P-1 R/P-1
WAIT
— — — — —PM1PM0
bit 7 bit 0
bit 7 WAIT: External Bus Data Wait Enable bit
1 = Wait selections unavailable for table reads and table writes
0 = Wait selections for table reads and table writes are determined by WAIT1:WAIT0 bits
(MEMCOM<5:4>)
bit 6-2 Unimplemented: Read as ‘0’
bit 1-0 PM1:PM0: Processor 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 for PIC18F6525/6621 devices; maintain these bits set.
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state
R/P-1 U-0 U-0 U-0 U-0 U-0 R/P-1 R/P-1
MCLRE
(1)
— — — — — ECCPMX
(2)
CCP2MX
bit 7 bit 0
bit 7 MCLRE: MCLR Enable bit
(1)
1 = MCLR pin enabled, RG5 input pin disabled
0 = RG5 input enabled, MCLR
disabled
bit 6-2 Unimplemented: Read as ‘0’
bit 1 ECCPMX: ECCP Mux bit
(2)
1 = ECCP1 (P1B/P1C) and ECCP3 (P3B/P3C) PWM outputs are multiplexed with RE6 through
RE3
0 = ECCP1 (P1B/P1C) and ECCP3 (P3B/P3C) PWM outputs are multiplexed with RH7 through
RH4
bit 0 CCP2MX: ECCP2 Mux bit
In Microcontroller mode:
1 = ECCP2 input/output is multiplexed with RC1
0 = ECCP2 input/output is multiplexed with RE7
In Microprocessor, Microprocessor with Boot Block and Extended Microcontroller modes
(PIC18F8525/8621 devices only):
1 = ECCP2 input/output is multiplexed with RC1
0 = ECCP2 input/output is multiplexed with RB3
Note 1: If MCLR
is disabled, either disable Low-Voltage ICSP or hold RB5/KBI1/PGM low to
ensure proper entry into ICSP mode.
2: This register is unimplemented for PIC18F6525/6621 devices; maintain these bits
set.
Legend:
R = Readable bit P = Programmable bit U = Unimplemented bit, read as ‘0’
-n = Value when device is unprogrammed u = Unchanged from programmed state