PIC16LF877A-I Datasheet, PDF (153/234 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers

PIC16F87XA
TABLE 14-6: INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Register
Devices
Power-on Reset,
Brown-out Reset
MCLR Resets,
WDT Reset
Wake-up via WDT or
Interrupt
TRISD
73A 74A 76A 77A
1111 1111
1111 1111
uuuu uuuu
TRISE
73A 74A 76A 77A
0000 -111
0000 -111
uuuu -uuu
PIE1
73A 74A 76A 77A
73A 74A 76A 77A
r000 0000
0000 0000
r000 0000
0000 0000
ruuu uuuu
uuuu uuuu
PIE2
73A 74A 76A 77A
-0-0 0--0
-0-0 0--0
-u-u u--u
PCON
73A 74A 76A 77A
---- --qq
---- --uu
---- --uu
SSPCON2
73A 74A 76A 77A
0000 0000
0000 0000
uuuu uuuu
PR2
73A 74A 76A 77A
1111 1111
1111 1111
1111 1111
SSPADD
73A 74A 76A 77A
0000 0000
0000 0000
uuuu uuuu
SSPSTAT
73A 74A 76A 77A
--00 0000
--00 0000
--uu uuuu
TXSTA
73A 74A 76A 77A
0000 -010
0000 -010
uuuu -uuu
SPBRG
73A 74A 76A 77A
0000 0000
0000 0000
uuuu uuuu
CMCON
73A 974 76A 77A
0000 0111
0000 0111
uuuu uuuu
CVRCON
73A 74A 76A 77A
000- 0000
000- 0000
uuu- uuuu
ADRESL
73A 74A 76A 77A
xxxx xxxx
uuuu uuuu
uuuu uuuu
ADCON1
73A 74A 76A 77A
00-- 0000
00-- 0000
uu-- uuuu
EEDATA
73A 74A 76A 77A
xxxx xxxx
uuuu uuuu
uuuu uuuu
EEADR
73A 74A 76A 77A
xxxx xxxx
uuuu uuuu
uuuu uuuu
EEDATH
73A 74A 76A 77A
xxxx xxxx
uuuu uuuu
uuuu uuuu
EEADRH
73A 74A 76A 77A
xxxx xxxx
uuuu uuuu
uuuu uuuu
EECON1
73A 74A 76A 77A
x--- x000
u--- u000
u--- uuuu
EECON2
73A 74A 76A 77A
---- ----
---- ----
---- ----
Legend: u = unchanged, x = unknown, - = unimplemented bit, read as ‘0’, q = value depends on condition,
r = reserved, maintain clear. Shaded cells indicate conditions do not apply for the designated device.
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 14-5 for Reset value for specific condition.
FIGURE 14-6:
TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO VDD VIA RC NETWORK)
VDD
MCLR
Internal POR
PWRT Time-out
OST Time-out
Internal Reset
TPWRT
TOST
 2003 Microchip Technology Inc.
DS39582B-page 151