參數(shù)資料
型號(hào): PIC12F510
廠商: Microchip Technology Inc.
英文描述: 8/14-Pin, 8-Bit Flash Microcontroller
中文描述: 8/14-Pin,8位閃存微控制器
文件頁數(shù): 22/114頁
文件大?。?/td> 908K
代理商: PIC12F510
PIC12F510/16F506
DS41268B-page 20
Preliminary
2006 Microchip Technology Inc.
4.4
OPTION Register
The OPTION register is a 8-bit wide, write-only register,
that contains various control bits to configure the
Timer0/WDT prescaler and Timer0.
By executing the
OPTION
instruction, the contents of
the W register will be transferred to the OPTION
register. A Reset sets the OPTION<7:0> bits.
REGISTER 4-3:
OPTION REGISTER (PIC12F510)
Note 1:
If TRIS bit is set to ‘
0
’, the wake-up on
change
and
disabled for that pin (i.e., note that TRIS
overrides Option control of GPPU/RBPU
and GPWU/RBWU).
2:
If the T0CS bit is set to ‘
1
’, it will override
the TRIS function on the T0CKI pin.
pull-up
functions
are
W-1
W-1
W-1
W-1
W-1
W-1
W-1
W-1
GPWU
GPPU
T0CS
T0SE
PSA
PS2
PS1
PS0
bit 7
bit 0
bit 7
GPWU:
Enable Wake-up On Pin Change bit (GP0, GP1, GP3)
1
= Disabled
0
= Enabled
GPPU:
Enable Weak Pull-ups bit (GP0, GP1, GP3)
1
= Disabled
0
= Enabled
T0CS:
Timer0 Clock Source Select bit
1
=
Transition on T0CKI pin
0
=
Internal instruction cycle clock (CLKOUT)
T0SE:
Timer0 Source Edge Select bit
1
=
Increment on high-to-low transition on T0CKI pin
0
=
Increment on low-to-high transition on T0CKI pin
PSA:
Prescaler Assignment bit
1
=
Prescaler assigned to the WDT
0
=
Prescaler assigned to Timer0
PS<2:0>:
Prescaler Rate Select bits
bit 6
bit 5
bit 4
bit 3
bit 2-0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
000
001
010
011
100
101
110
111
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
Bit Value
Timer0 Rate
WDT Rate
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