Datasheet

 2001 Microchip Technology Inc. DS30292C-page 127
PIC16F87X
FIGURE 12-5: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD)
PIE2 873 874 876 877 -r-0 0--0 -r-0 0--0 -r-u u--u
PCON 873 874 876 877 ---- --qq ---- --uu ---- --uu
PR2 873 874 876 877 1111 1111 1111 1111 1111 1111
SSPADD 873 874 876 877 0000 0000 0000 0000 uuuu uuuu
SSPSTAT 873 874 876 877 --00 0000 --00 0000 --uu uuuu
TXSTA 873 874 876 877 0000 -010 0000 -010 uuuu -uuu
SPBRG 873 874 876 877 0000 0000 0000 0000 uuuu uuuu
ADRESL 873 874 876 877 xxxx xxxx uuuu uuuu uuuu uuuu
ADCON1 873 874 876 877 0--- 0000 0--- 0000 u--- uuuu
EEDATA 873 874 876 877 0--- 0000 0--- 0000 u--- uuuu
EEADR 873 874 876 877 xxxx xxxx uuuu uuuu uuuu uuuu
EEDATH 873 874 876 877 xxxx xxxx uuuu uuuu uuuu uuuu
EEADRH 873 874 876 877 xxxx xxxx uuuu uuuu uuuu uuuu
EECON1 873 874 876 877 x--- x000 u--- u000 u--- uuuu
EECON2 873 874 876 877 ---- ---- ---- ---- ---- ----
TABLE 12-6: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register Devices
Power-on Reset,
Brown-out Reset
MCLR
Resets,
WDT Reset
Wake-up via WDT or
Interrupt
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ’0’, q = value depends on condition,
r = reserved, maintain clear
Note 1: One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up).
2: When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector
(0004h).
3: See Table 12-5 for RESET value for specific condition.
TPWRT
TOST
VDD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET