參數(shù)資料
型號: 16F871
廠商: Microchip Technology Inc.
英文描述: CAT 5E CROSSOVER PATCH CORD CABLE GREEN 6 FT
中文描述: 28/40-Pin 8位CMOS閃存微控制器
文件頁數(shù): 97/156頁
文件大小: 2816K
代理商: 16F871
1999 Microchip Technology Inc.
Preliminary
DS30569A-page 97
PIC16F870/871
FIGURE 11-5: TIME-OUT SEQUENCE ON POWER-UP (MCLR TIED TO V
DD
)
FIGURE 11-6: TIME-OUT SEQUENCE ON POWER-UP (MCLR NOT TIED TO V
DD
): CASE 1
ADCON1
EEDATA
EEADR
EEDATH
EEADRH
EECON1
EECON2
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 inter-
rupt vector (0004h).
3:
See Table 11-5 for reset value for specific condition.
870
870
870
870
870
870
870
871
871
871
871
871
871
871
0--- 0000
0--- 0000
xxxx xxxx
xxxx xxxx
xxxx xxxx
x--- x000
---- ----
0--- 0000
0--- 0000
uuuu uuuu
uuuu uuuu
uuuu uuuu
u--- u000
---- ----
u--- uuuu
u--- uuuu
uuuu uuuu
uuuu uuuu
uuuu uuuu
u--- uuuu
---- ----
TABLE 11-6:
Register
INITIALIZATION CONDITIONS FOR ALL REGISTERS (CONTINUED)
Devices
Power-on Reset,
Brown-out Reset
MCLR Resets
WDT Reset
Wake-up via WDT or
Interrupt
T
PWRT
T
OST
V
DD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
T
PWRT
T
OST
V
DD
MCLR
INTERNAL POR
PWRT TIME-OUT
OST TIME-OUT
INTERNAL RESET
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