AN2727 Freescale Semiconductor / Motorola, AN2727 Datasheet - Page 4

• Manufacturer Part Number: AN2727
• Description: Designing Hardware for the HCS12 D-Family
• Manufacturer: Freescale Semiconductor / Motorola

Pin States Following Reset in Normal Single Chip Mode
Pin States Following Reset in Normal Single Chip Mode
Typically, I/O pins are configured as inputs following a reset; this is done to avoid conflict with application
signals driving I/O pins.
Some I/O pins are sampled on reset to determine the reset configuration of the device. These control pins
and some GPIO (general purpose input/output) pins have internal pull devices enabled by reset.
The following diagrams show the status of each pin when the device comes out of reset in normal single
chip mode.
Designing Hardware for the HCS12 D-Family, Rev. 0
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Freescale Semiconductor