mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 287

• Manufacturer Part Number: mc68hc912d60c
• Description: Hc12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

PURDS — Pull-Up Register for Port S
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
RESET:
Bit 7
0
0
RDPS2
6
0
RDPS2 — Reduce Drive of Port S[7:4]
RDPS1 — Reduce Drive of Port S[3:2]
RDPS0 — Reduce Drive of Port S[1:0]
PUPS2 — Pull-up Port S[7:4] Enable
PUPS1 — Pull-up Port S[3:2] Enable
PUPS0 — Pull-up Port S[1:0] Enable
0 = Port S[7:4] output drivers operate normally
1 = Port S[7:4] output pins have reduced drive capability for lower
0 = Port S[3:2] output drivers operate normally
1 = Port S[3:2] output pins have reduced drive capability for lower
0 = Port S[1:0] output drivers operate normally
1 = Port S[1:0] output pins have reduced drive capability for lower
0 = No internal pull-ups on port S[7:4]
1 = Port S[7:4] input pins have an active pull-up device. If a pin is
0 = No internal pull-ups on port S[3:2]
1 = Port S[3:2] input pins have an active pull-up device. If a pin is
0 = No internal pull-ups on port S[1:0]
1 = Port S[1:0] input pins have an active pull-up device. If a pin is
RDPS1
5
0
power and less noise
power and less noise
power and less noise
programmed as output, the pull-up device becomes inactive.
programmed as output, the pull-up device becomes inactive.
programmed as output, the pull-up device becomes inactive.
Multiple Serial Interface
RDPS0
4
0
3
0
0
PUPS2
2
0
PUPS1
1
0
Multiple Serial Interface
PUPS0
Bit 0
0
Technical Data
$00D9
Port S
287