mc68hc908gp32 Freescale Semiconductor, Inc, mc68hc908gp32 Datasheet - Page 27

• Manufacturer Part Number: mc68hc908gp32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

1.5.2 Oscillator Pins (OSC1 and OSC2)
The OSC1 and OSC2 pins are the connections for the on-chip oscillator circuit. See
Generator Module
1.5.3 External Reset Pin (RST)
A low on the RST pin forces the MCU to a known startup state. RST is bidirectional, allowing a reset of
the entire system. It is driven low when any internal reset source is asserted. This pin contains an internal
pullup resistor. See
1.5.4 External Interrupt Pin (IRQ)
IRQ is an asynchronous external interrupt pin. This pin contains an internal pullup resistor.
See
1.5.5 CGM Power Supply Pins (V
V
Connect the V
potential as V
Generator Module (CGM)
1.5.6 External Filter Capacitor Pin (CGMXFC)
CGMXFC is an external filter capacitor connection for the CGM. See
(CGM)
1.5.7 ADC Power Supply/Reference Pins (V
V
pin to the same voltage potential as V
Freescale Semiconductor
DDA
DDAD
Chapter 9 External Interrupt (IRQ).
and V
and V
SSA
SSAD
SS
DDA
are the power supply pins for the analog portion of the clock generator module (CGM).
. Decoupling of these pins should be as per the digital supply. See
are the power supply pins for the analog-to-digital converter (ADC). Connect the V
(CGM).
pin to the same voltage potential as V
Chapter 14 System Integration Module
Figure 1-5. Power Supply Bypassing
MC68HC908GP32 Data Sheet, Rev. 10
DD
DDA
NOTE: Component values shown
V
, and the V
DD
V
DD
and V
represent typical applications.
SSA
DDAD
SSAD
MCU
0.1 µF
+
C1
C2
)
DD
/V
pin to the same voltage potential as V
REFH
, and the V
(SIM).
and V
V
Chapter 5 Clock Generator Module
SS
SSA
SSAD
pin to the same voltage
/V
REFL
Chapter 5 Clock
Chapter 5 Clock
)
Pin Functions
SS
.
DDAD
27