MC68HC912BD32 Datasheet, PDF (170/292 Pages) Freescale Semiconductor, Inc – Advance Information

Serial Interface
Freescale Semiconductor, Inc.
RDPS1 — Reduce Drive of PS[3:2]
0 = Port S output drivers for bits 3 and 2 operate normally.
1 = Port S output pins for bits 3 and 2 have reduced drive capability
for lower power and less noise.
RDPS0 — Reduce Drive of PS[1:0]
0 = Port S output drivers for bits 1 and 0 operate normally.
1 = Port S output pins for bits 1 and 0 have reduced drive capability
for lower power and less noise.
PUPS2 — Pull-Up Port S Enable PS[7:4]
0 = No internal pull-ups on port S bits 7 through 4.
1 = Port S input pins for bits 7 through 4 have an active pull-up
device. If a pin is programmed as output, the pull-up device
becomes inactive.
PUPS1 — Pull-Up Port S Enable PS[3:2]
0 = No internal pull-ups on port S bits 3 and 2.
1 = Port S input pins for bits 3 and 2 have an active pull-up device.
If a pin is programmed as output, the pull-up device becomes
inactive.
PUPS0 — Pull-Up Port S Enable PS[1:0]
0 = No internal pull-ups on port S bits 1 and 0.
1 = Port S input pins for bits 1 and 0 have an active pull-up device.
If a pin is programmed as output, the pull-up device becomes
inactive.
MC68HC912BD32 Rev 1.0
Serial Interface
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24-sint