MC68HC908LB8_05 Datasheet, PDF (23/234 Pages) Freescale Semiconductor, Inc – M68HC08 Microcontrollers

Pin Function Priority
Table 1-2. Function Priority in Shared Pins
Pin Name
Highest-to-Lowest Priority Sequence
PTA0
ADC0 → KBI0 → PTA0
PTA1
ADC1 → KBI1 → PTA1
PTA2
ADC2 → KBI2 → PTA2
PTA3
ADC3 → KBI3 → PTA3
PTA4
ADC4 → KBI4 → PTA4
PTA5
RST → KBI5 → PTA5
PTA6
ADC5 → TCH0 → KBI6 → PTA6
PTB0
TOP → PTB0
PTB1
BOT → PTB1
PTB2
FAULT⁽¹⁾ → PTB2
PTB3
PWM0 → PTB3
PTB4
PWM1 → PTB4
PTB5
V+ → PTB5
PTB6
V– → PTB6
PTB7
V_OUT / ADC6 / FAULT⁽¹⁾⁽²⁾ → PTB7
PTC0
OSC1 → PTC0
PTC1
OSC2 → PTC1
PTC2
SHTDWN → IRQ → PTC2
NOTES:
1. Fault function is switchable between pins PTB2 and PTB7.
2. V_OUT, ADC6, and FAULT functions all share equal priority. All of these functions can be used
simultaneously on this pin.
NOTE
Any unused inputs and I/O ports should be tied to an appropriate logic level
(either V_DD or V_SS). Although the I/O ports of the MC68HC908LB8 do not
require termination, termination is recommended to reduce the possibility
of static damage.
MC68HC908LB8 Data Sheet, Rev. 1
Freescale Semiconductor
23