PIC12F1840 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
'PIC12F1840' PDF : 410 Pages View PDF
PIC12(L)F1840
TABLE 3-6: SPECIAL FUNCTION REGISTER SUMMARY
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Value on all
other
Resets
Bank 0
00Ch PORTA
—
—
RA5
RA4
RA3
RA2
RA1
RA0 --xx xxxx --xx xxxx
00Dh
to —
010h
Unimplemented
—
—
011h PIR1
TMR1GIF
ADIF
RCIF
TXIF
SSP1IF CCP1IF TMR2IF TMR1IF 0000 0000 0000 0000
012h PIR2
OSFIF
—
C1IF
EEIF
BCL1IF
—
—
—
0-00 0--- 0-00 0---
013h —
Unimplemented
—
—
014h —
Unimplemented
—
—
015h TMR0
Timer0 Module Register
xxxx xxxx uuuu uuuu
016h TMR1L
Holding Register for the Least Significant Byte of the 16-bit TMR1 Register
xxxx xxxx uuuu uuuu
017h TMR1H
Holding Register for the Most Significant Byte of the 16-bit TMR1 Register
xxxx xxxx uuuu uuuu
018h T1CON
TMR1CS1 TMR1CS0
T1CKPS<1:0>
T1OSCEN T1SYNC
—
TMR1ON 0000 00-0 uuuu uu-u
019h T1GCON
TMR1GE T1GPOL
T1GTM
T1GSPM
T1GGO/
DONE
T1GVAL
T1GSS<1:0>
0000 0x00 uuuu uxuu
01Ah TMR2
Timer2 Module Register
0000 0000 0000 0000
01Bh PR2
Timer2 Period Register
1111 1111 1111 1111
01Ch T2CON
—
T2OUTPS<3:0>
TMR2ON
T2CKPS<1:0>
-000 0000 -000 0000
01Dh —
Unimplemented
—
—
01Eh CPSCON0
CPSON
CPSRM
—
—
CPSRNG<1:0>
CPSOUT T0XCS 00-- 0000 00-- 0000
01Fh CPSCON1
—
—
—
—
—
—
CPSCH<1:0>
---- --00 ---- --00
Bank 1
08Ch TRISA
—
—
TRISA5
TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 --11 1111 --11 1111
08Dh
to —
090h
Unimplemented
—
—
091h PIE1
TMR1GIE
ADIE
RCIE
TXIE
SSP1IE CCP1IE TMR2IE TMR1IE 0000 0000 0000 0000
092h PIE2
OSFIE
—
C1IE
EEIE
BCL1IE
—
—
—
0-00 0--- 0-00 0---
093h —
Unimplemented
—
—
094h —
Unimplemented
—
—
095h OPTION_REG WPUEN INTEDG TMR0CS TMR0SE
PSA
PS<2:0>
1111 1111 1111 1111
096h PCON
STKOVF STKUNF
—
—
RMCLR
RI
POR
BOR 00-- 11qq qq-- qquu
097h WDTCON
—
—
WDTPS<4:0>
SWDTEN --01 0110 --01 0110
098h OSCTUNE
—
—
TUN<5:0>
--00 0000 --00 0000
099h OSCCON
SPLLEN
IRCF<3:0>
—
SCS<1:0>
0011 1-00 0011 1-00
09Ah OSCSTAT
T1OSCR
PLLR
OSTS
HFIOFR HFIOFL MFIOFR LFIOFR HFIOFS 10q0 0q00 qqqq qq0q
09Bh ADRESL
ADC Result Register Low
xxxx xxxx uuuu uuuu
09Ch ADRESH
ADC Result Register High
xxxx xxxx uuuu uuuu
09Dh ADCON0
—
CHS<4:0>
GO/DONE ADON -000 0000 -000 0000
09Eh ADCON1
ADFM
ADCS<2:0>
—
—
ADPREF<1:0>
0000 --00 0000 --00
09Fh —
Unimplemented
—
—
Legend:
Note 1:
2:
3:
x = unknown, u = unchanged, q = value depends on condition, - = unimplemented, r = reserved.
Shaded locations are unimplemented, read as ‘0’.
These registers can be addressed from any bank.
PIC12F1840 only.
Unimplemented, read as ‘1’.
DS41441C-page 22
2011-2012 Microchip Technology Inc.
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