RFPIC12F675 Datasheet, PDF (18/136 Pages) Microchip Technology – FLASH-Based Microcontroller with ASK/FSK Transmitter

rfPIC12F675
REGISTER 3-2:
TRISIO — GPIO TRISTATE REGISTER (ADDRESS: 85h)
U-0
—
bit 7
U-0
R/W-x R/W-x
R-1
R/W-x R/W-x R/W-x
—
TRISIO5 TRISIO4 TRISIO3 TRISIO2 TRISIO1 TRISIO0
bit 0
bit 7-6:
bit 5-0:
Unimplemented: Read as ’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
- n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
REGISTER 3-3:
WPU — WEAK PULL-UP REGISTER (ADDRESS: 95h)
U-0
—
bit 7
U-0
R/W-1 R/W-1
U-0
R/W-1
—
WPU5 WPU4
—
WPU2
R/W-1
WPU1
R/W-1
WPU0
bit 0
bit 7-6
bit 5-4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
WPU<5:4>: Weak Pull-up Register bit
1 = Pull-up enabled
0 = Pull-up disabled
Unimplemented: Read as ‘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
- n = Value at POR
W = Writable bit
’1’ = Bit is set
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared x = Bit is unknown
DS70091B-page 18
Preliminary
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