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Register Definitions: Configuration Words

PIC16(L)F18857/77

Legend:

  • R: Readable bit
  • P: Programmable bit
  • U: Unimplemented bit, read as ‘1’
  • ‘0’: Bit is cleared
  • ‘1’: Bit is set
  • n: Value when blank or after Bulk Erase

CONFIG1 - OSCILLATORS

Bit 13 12 11 10 9 8
Name FCMEN Reserved CSWEN Reserved Reserved CLKOUTEN
Access R/P - R/P - - R/P
Reset 1 - 1 - - 1
Bit 7 6 ~ 4 3 2 ~ 0
Name Reserved RSTOSC<2:0> Reserved FEXTOSC<2:0>
Access - R/P - R/P
Reset - 1 - 1

CONFIG2 - SUPERVISORS

Bit 13 12 11 10 9 8
Name DEBUG STVREN PPS1WAY ZCDDIS BORV Reserved
Access R/P R/P R/P R/P R/P -
Reset 1 - 1 1 1 1
Bit 7 ~ 6 5 4 ~ 2 1 0
Name BOREN<1:0> LPBOREN Reserved PWRTE MCLRE
Access R/P R/P - R/P R/P
Reset 1 1 - 1 1

CONFIG3 - WINDOWED WATCHDOG

Bit 13 ~ 11 10 ~ 8
Name WDTCCS<2:0> WDTCWS<2:0>
Access R/P R/P
Reset 1 1
Bit 7 6 ~ 5 4 ~ 0
Name Reserved WDTE<1:0> WDTCPS<4:0>
Access - R/P R/P
Reset - 1 1

n1: WDTCWS
n2: Value - WDTWS at POR
n3: Window delay Percent of time - WDTWS at POR
n4: Window opening Percent of time - WDTWS at POR
n5: Software control of WDTWS?
n6: Keyed access required?

wdt multi-head

n1 n2 n3 n4 n5 n6
111 111 n/a 100 Yes No
110 111 n/a 100 No Yes
101 101 25 75 No Yes
100 100 37.5 62.5 No Yes
011 011 50 50 No Yes
010 010 62.5 37.5 No Yes
001 001 75 25 No Yes
000 000 87.5 12.5 No Yes

n1: WDTCPS n2: Value - WDTPS at POR
n3: Divider Ratio - - WDTPS at POR
n4: Divider Ratio(max) - WDTPS at POR
n5: Typical Time Out(FIN = 31 kHz) - WDTPS at POR
n6: Software Control of WDTPS?

wdt multi-head

n1 n2 n3 n4 n5 n6
11111 01011 1:65536 216 2 s Yes
11110
…

10011
 11110
…

10011
 1:32 25 1 ms No
10010 10010 1:8388608 232 256 s No
10001 10001 1:4194304 222 128 s No
10000 10000 1:2097152 221 64 s No
01111 01111 1:1048576 220 32 s No
01110 01110 1:524299 219 16 s No
01101 01101 1:262144 218 8 s No
01100 01100 1:131072 217 4 s No
01011 01011 1:65536 216 2 s No
01010 01010 1:32768 215 1 s No
01001 01001 1:16384 214 512 ms No
01000 01000 1:8192 213 256 ms No
00111 00111 1:4096 212 128 ms No
00110 00110 1:2048 211 64 ms No
00101 00101 1:1024 210 32 ms No
00100 00100 1:512 29 16 ms No
00011 00011 1:256 28 8 ms No
00010 00010 1:128 27 4 ms No
00001 00001 1:64 26 2 ms No
00000 00000 1:32 25 1 ms No

CONFIG4 - MEMORY

Bit 13 12 11 ~ 8
Name LVP SCANE Reserved
Access R/P R/P -
Reset 1 1 -
Bit 7 ~ 2 1 ~ 0
Name Reserved WRT<1:0>
Access - R/P
Reset - 1

CONFIG5 - CODE PROTECTION

Bit 13 ~ 8
Name Reserved
Access -
Reset -
Bit 7 ~ 2 1 0
Name Reserved CPD CP
Access - R/P R/P
Reset - 1 1