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MC908GR8CDWE Datasheet, PDF (34/408 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers | |||
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Freescale Semiconductor, Inc.
General Description
1.6.10 Port C I/O Pins (PTC1âPTC0)
PTC1âPTC0 are general-purpose, bidirectional I/O port pins. See
Input/Output Ports (I/O). PTC0 and PTC1 are only available on 32-pin
QFP packages.
These port pins also have selectable pullups when configured for input
mode. The pullups are disengaged when configured for output mode.
The pullups are selectable on an individual port bit basis.
1.6.11 Port D I/O Pins (PTD6/T2CH0âPTD0/SS)
PTD6âPTD0 are special-function, bidirectional I/O port pins.
PTD3âPTD0 can be programmed to be serial peripheral interface (SPI)
pins, while PTD6âPTD4 can be individually programmed to be timer
interface module (TIM1 and TIM2) pins. See Timer Interface Module
(TIM), Serial Peripheral Interface (SPI), and Input/Output Ports (I/O).
These port pins also have selectable pullups when configured for input
mode. The pullups are disengaged when configured for output mode.
The pullups are selectable on an individual port bit basis.
When the port pins are configured for special-function mode (SPI, TIM1,
TIM2), pullups can be selectable on an individual port pin basis.
1.6.12 Port E I/O Pins (PTE1/RxDâPTE0/TxD)
PTE1âPTE0 are special-function, bidirectional I/O port pins. These pins
can also be programmed to be serial communications interface (SCI)
pins. See Serial Communications Interface (SCI) and Input/Output Ports
(I/O).
NOTE:
Any unused inputs and I/O ports should be tied to an appropriate logic
level (either VDD or VSS). Although the I/O ports of the MC68HC908GR8
do not require termination, termination is recommended to reduce the
possibility of electro-static discharge damage.
Technical Data
34
MC68HC908GR8 â Rev 4.0
General Description
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
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