參數(shù)資料
型號： PIC12F680
廠商： Microchip Technology Inc.
英文描述： 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with Serial I/O Interface(-2.0~5.5V,串行I/O接口,閃速微控制器)
中文描述： 8引腳，8位串行我的CMOS增強(qiáng)型閃存微控制器/ O接口（-2.0?5.5V的，串行的I / O接口，閃速微控制器）
文件頁數(shù)： 100/170頁
文件大?。?/td> 4191K
代理商： PIC12F680
PIC16F62X
DS40300C-page 98
Preliminary
2003 Microchip Technology Inc.
TABLE 14-7:
INITIALIZATION CONDITION FOR SPECIAL REGISTERS
TABLE 14-8:
INITIALIZATION CONDITION FOR REGISTERS
Condition
Program
Counter
STATUS
Register
PCON
Register
Power-on Reset
000h
0001 1xxx
---- 1-0x
MCLR Reset during normal operation
000h
000u uuuu
---- 1-uu
MCLR Reset during SLEEP
000h
0001 0uuu
---- 1-uu
WDT Reset
000h
0000 uuuu
---- 1-uu
WDT Wake-up
PC + 1
uuu0 0uuu
---- u-uu
Brown-out Detect Reset
000h
000x xuuu
---- 1-u0
Interrupt Wake-up from SLEEP
PC + 1
(1)
uuu1 0uuu
---- u-uu
Legend:
u
= unchanged,
x
= unknown,
-
= unimplemented bit, reads as ‘0’.
Note
1:
When the wake-up is due to an interrupt and global enable bit, GIE is set, the PC is loaded with the interrupt vector
(0004h) after execution of PC+1.
Register
Address
Power-on
Reset
MCLR Reset during normal
operation
MCLR Reset during SLEEP
WDT Reset
Brown-out Detect Reset
(1)
Wake-up from SLEEP through
interrupt
Wake-up from SLEEP through
WDT timeout
W
—
xxxx xxxx
uuuu uuuu
uuuu uuuu
INDF
00h
—
—
—
TMR0
01h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PC + 1
(3)
uuuq quuu
(4)
PCL
02h
0000 0000
0000 0000
000q quuu
(4)
STATUS
03h
0001 1xxx
FSR
04h
xxxx xxxx
uuuu uuuu
uuuu uuuu
PORTA
05h
xxxx 0000
xxxx u000
xxxx 0000
PORTB
06h
xxxx xxxx
uuuu uuuu
uuuu uuuu
T1CON
10h
--00 0000
--uu uuuu
--uu uuuu
T2CON
12h
-000 0000
-000 0000
-uuu uuuu
CCP1CON
17h
--00 0000
--00 0000
--uu uuuu
RCSTA
18h
0000 -00x
0000 -00x
uuuu -uuu
CMCON
1Fh
0000 0000
0000 0000
uu-- uuuu
PCLATH
0Ah
---0 0000
---0 0000
---u uuuu
uuuu uqqq
(2)
-q-- ----
(2,5)
INTCON
0Bh
0000 000x
0000 000u
PIR1
0Ch
0000 -000
0000 -000
OPTION
81h
1111 1111
1111 1111
uuuu uuuu
TRISA
85h
11-1 1111
11-- 1111
uu-u uuuu
TRISB
86h
1111 1111
1111 1111
uuuu uuuu
PIE1
8Ch
0000 -000
0000 -000
---- 1-uq
(1,6)
uuuu -uuu
PCON
8Eh
---- 1-0x
---- --uu
TXSTA
98h
0000 -010
0000 -010
uuuu -uuu
EECON1
9Ch
---- x000
---- q000
---- uuuu
VRCON
9Fh
000- 0000
000- 0000
uuu- uuuu
Legend:
Note
u
= unchanged,
x
= unknown,
-
= unimplemented bit, reads as ‘0’,
q
= value depends on condition.
If V
DD
goes too low, Power-on Reset will be activated and registers will be affected differently.
One or more bits in INTCON, PIR1 and/or PIR2 will be affected (to cause wake-up).
When the wake-up is due to an interrupt and the GIE bit is set, the PC is loaded with the interrupt vector (0004h).
See Table 14-7 for RESET value for specific condition.
If wake-up was due to comparator input changing, then Bit 6 = 1. All other interrupts generating a wake-up will cause Bit 6 = u.
If RESET was due to brown-out, then Bit 0 = 0. All other RESETS will cause Bit 0 = u.
1:
2:
3:
4:
5:
6:
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