mc68hc908mr8 Freescale Semiconductor, Inc, mc68hc908mr8 Datasheet - Page 35

• Manufacturer Part Number: mc68hc908mr8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

1.5.4 External Interrupt Pin (IRQ)
1.5.5 CGM Power Supply Pins (V
1.5.6 ADC Reference Voltage Input Pin (V
1.5.7 External Filter Capacitor Pin (CGMXFC)
1.5.8 Port A Input/Output (I/O) Pins (PTA6/ATD6–PTA0/ATD0)
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
IRQ is an asynchronous external interrupt pin. See
Interrupt
V
clock generator module (CGM) and the analog-to-digital converter
(ADC). Decoupling of these pins should be per the digital supply. See
Section 8. Clock Generator Module (CGM)
Analog-to-Digital Converter
V
Section 18. Analog-to-Digital Converter
CGMXFC is an external filter capacitor connection for the CGM. See
Section 8. Clock Generator Module
Port A is a 7-bit special function port, sharing all of its pins with the
analog-to-digital converter (ADC). On the 32-pin QFP package, all seven
bits (PTA6/ATD6–PTA0/ATD0) of the port are available. On the 28-pin
package, four bits (PTA3/ATD3–PTA0/ATD0) are available.
PTA3–PTA0 have high current source and sink capability. See
Section 14. Input/Output (I/O)
DDA
REFH
and V
is the power supply input for setting the reference voltage. See
(IRQ).
DDA
SSA
General Description
are the power supply pins for the analog portion of the
and V
REFH
SSA
)
)
(ADC).
Ports.
(CGM).
(ADC).
and
Section 16. External
Section 18.
General Description
Pin Assignments
Technical Data
35