参数资料
型号: RFPIC12F675K-E/SS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 20 MHz, RISC MICROCONTROLLER, PDSO20
封装: 0.209 INCH, PLASTIC, MO-150, SSOP-20
文件页数: 37/123页
文件大小: 5438K
代理商: RFPIC12F675K-E/SS
rfPIC12F675
DS70091A-page 18
Preliminary
2003 Microchip Technology Inc.
REGISTER 3-2:
TRISIO — GPIO TRISTATE REGISTER (ADDRESS: 85h)
REGISTER 3-3:
WPU — WEAK PULL-UP REGISTER (ADDRESS: 95h)
U-0
R/W-x
R-1
R/W-x
TRISIO5
TRISIO4
TRISIO3
TRISIO2
TRISIO1
TRISIO0
bit 7
bit 0
bit 7-6:
Unimplemented: Read as ’0’
bit 5-0:
TRISIO<5:0>: General Purpose I/O Tri-State Control bit
1 = GPIO pin configured as an input (tri-stated)
0 = GPIO pin configured as an output.
Note:
TRISIO<3> always reads 1.
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
U-0
R/W-1
U-0
R/W-1
WPU5
WPU4
WPU2
WPU1
WPU0
bit 7
bit 0
bit 7-6
Unimplemented: Read as ‘0’
bit 5-4
WPU<5:4>: Weak Pull-up Register bit
1
= Pull-up enabled
0
= Pull-up disabled
bit 3
Unimplemented: Read as ‘0’
bit 2-0
WPU<2:0>: Weak Pull-up Register bit
1
= Pull-up enabled
0
= Pull-up disabled
Note 1: Global GPPU must be enabled for individual pull-ups to be enabled.
2: The weak pull-up device is automatically disabled if the pin is in Output mode
(TRISIO = 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
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