Microchip Technology MCP1630DM-DDBS1 Data Sheet
©
2007 Microchip Technology Inc.
DS41211D-page 91
PIC12F683
TABLE 12-5:
INITIALIZATION CONDITION FOR SPECIAL REGISTERS
EECON1
9Ch
---- x000
---- q000
---- uuuu
EECON2
9Dh
---- ----
---- ----
---- ----
ADRESL
9Eh
xxxx xxxx
uuuu uuuu
uuuu uuuu
ANSEL
9Fh
-000 1111
-000 1111
-uuu uuuu
TABLE 12-4:
INITIALIZATION CONDITION FOR REGISTERS (CONTINUED)
Register
Address
Power-on Reset
MCLR Reset
WDT Reset
Brown-out Reset
(1)
Wake-up from Sleep
through Interrupt
Wake-up from Sleep through
WDT Time-out
Legend:
u
= unchanged,
x
= unknown, – = unimplemented bit, reads as ‘
0
’,
q
= value depends on condition.
Note 1:
If V
DD
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).
vector (0004h).
4:
See Table 12-5 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
.
Condition
Program
Counter
Status
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
--01 --0x
MCLR Reset during Normal Operation
000h
000u uuuu
--0u --uu
MCLR Reset during Sleep
000h
0001 0uuu
--0u --uu
WDT Reset
000h
0000 uuuu
--0u --uu
WDT Wake-up
PC + 1
uuu0 0uuu
--uu --uu
Brown-out Reset
000h
0001 1uuu
--01 --10
Interrupt Wake-up from Sleep
PC + 1
(1)
uuu1 0uuu
--uu --uu
Legend:
u
= unchanged,
x
= unknown, – = unimplemented bit, reads as ‘
0
’.
Note 1:
When the wake-up is due to an interrupt and Global Interrupt Enable bit, GIE, is set, the PC is loaded with
the interrupt vector (0004h) after execution of PC + 1.
the interrupt vector (0004h) after execution of PC + 1.