PIC16F631/677/685/687/689/690
TABLE 14-4: INITIALIZATION CONDITION FOR REGISTER (CONTINUED)
Wake-up from Sleep
through Interrupt
Wake-up from Sleep
through WDT Time-out
MCLR Reset
WDT Reset (Continued)
Brown-out Reset
Register
Address
Power-on Reset
(1)
TRISB
86h/186h
87h/187h
8Ch
1111 ----
1111 1111
-000 0000
0000 ----
--01 --0x
-110 q000
---0 0000
1111 1111
0000 0000
---- ----
0000 0000
--11 -111
--00 0000
---0 1000
0000 0010
0000 0000
0000 0000
01-0 0-00
xxxx xxxx
-000 ----
0000 0000
0000 0000
--00 0000
---- 0000
1111 ----
0000 ----
0000 0000
0000 -000
0000 -000
00-- --00
1111 1111
---- 1111
x--- x000
---- ----
---0 0001
0000 00--
1111 ----
1111 1111
-000 0000
0000 ----
uuuu ----
uuuu uuuu
-uuu uuuu
uuuu uuuu
--uu --uu
-uuu uuuu
---u uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
--uu uuuu
---u uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
uu-u u-uu
uuuu uuuu
-uuu ----
uuuu uuuu
uuuu uuuu
--uu uuuu
---- uuuu
uuuu ----
uuuu ----
uuuu uuuu
uuuu -uuu
uuuu -uuu
uu-- --uu
uuuu uuuu
---- uuuu
---- uuuu
---- ----
---u uuuu
uuuu uu--
TRISC
PIE1
PIE2
8Dh
1, 5)
PCON
8Eh
--0u --uq
OSCCON
OSCTUNE
PR2
8Fh
-110 q000
---u uuuu
1111 1111
1111 1111
1111 1111
1111 1111
--11 -111
--00 0000
---0 1000
0000 0010
0000 0000
0000 0000
01-0 0-00
uuuu uuuu
-000 ----
0000 0000
0000 0000
--00 0000
---- 0000
1111 ----
0000 ----
0000 0000
0000 -000
0000 -000
00-- --10
1111 1111
---- 1111
u--- q000
---- ----
---0 0001
0000 00--
90h
92h
SSPADD
93h
(6)
SSPMSK
SSPSTAT
WPUA
93h
94h
95h
IOCA
96h
WDTCON
TXSTA
97h
98h
SPBRG
99h
SPBRGH
BAUDCTL
ADRESL
ADCON1
EEDAT
9Ah
9Bh
9Eh
9Fh
10Ch
10Dh
10Eh
10Fh
115h
116h
118h
119h
11Ah
11Bh
11Eh
11Fh
18Ch
18Dh
19Dh
19EH
EEADR
EEDATH
EEADRH
WPUB
IOCB
VRCON
CM1CON0
CM2CON0
CM2CON1
ANSEL
ANSELH
EECON1
EECON2
PSTRCON
SRCON
Legend: u= unchanged, x= unknown, —= unimplemented bit, reads as ‘0’, q= value depends on condition.
Note 1: If VDD goes too low, Power-on Reset will be activated and registers will be affected differently.
2: One or more bits in INTCON and/or PIR1 will be affected (to cause wake-up).
3: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h).
4: See Table 14-5 for Reset value for specific condition.
5: If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u.
6: Accessible only when SSPM<3:0> = 1001.
DS41262D-page 202
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
