PIC16C717/770/771
TABLE 12-6: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register
Power-on Reset or
Brown-out Reset
MCLR Reset or
WDT Reset
Wake-up via WDT or
Interrupt
LVDCON
--00 0101
--00 0101
--uu uuuu
ANSEL
1111 1111
1111 1111
uuuu uuuu
ADRESL
xxxx xxxx
uuuu uuuu
uuuu uuuu
ADCON1
0000 000
0000 0000
uuuu uuuu
PMDATL
xxxx xxxx
uuuu uuuu
uuuu uuuu
PMADRL
xxxx xxxx
uuuu uuuu
uuuu uuuu
PMDATH
--xx xxxx
--uu uuuu
--uu uuuu
PMADRH
---- xxxx
---- uuuu
---- uuuu
PMCON1
1--- ---0
1--- ---0
1--- ---0
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ’0’, q = value
depends on condition
Note 1: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the
interrupt vector (0004h).
2: See Table 12-5 for reset value for specific condition.
FIGURE 12-7: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD)
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
TPWRT
TOST
© 1999 Microchip Technology Inc.
Advanced Information
DS41120A-page 133