mc68hc912d60c Freescale Semiconductor, Inc, mc68hc912d60c Datasheet - Page 95

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

RDRIV — Reduced Drive of I/O Lines
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
RESET:
Bit 7
0
0
RDPH
6
0
These bits select reduced drive for the associated port pins. This gives
reduced power consumption and reduced RFI with a slight increase in
transition time (depending on loading). The reduced drive function is
independent of which function is being used on a particular port.
This register is not in the map in peripheral mode.
Normal: write once; Special: write anytime EXCEPT the first time. Read
anytime.
RDPH — Reduced Drive of Port H
RDPG — Reduced Drive of Port G
RDPE — Reduced Drive of Port E
RDPB — Reduced Drive of Port B
RDPA — Reduced Drive of Port A
0 = All port H output pins have full drive enabled.
1 = All port H output pins have reduced drive capability.
0 = All port G output pins have full drive enabled.
1 = All port G output pins have reduced drive capability.
0 = All port E output pins have full drive enabled.
1 = All port E output pins have reduced drive capability.
0 = All port B output pins have full drive enabled.
1 = All port B output pins have reduced drive capability.
0 = All port A output pins have full drive enabled.
1 = All port A output pins have reduced drive capability.
RDPG
5
0
Bus Control and Input/Output
4
0
0
RDPE
3
0
2
0
0
RDPB
Bus Control and Input/Output
1
0
RDPA
Bit 0
0
Technical Data
Registers
$000D
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