MC68HC908GP32CFB Freescale Semiconductor, MC68HC908GP32CFB Datasheet - Page 283

• Manufacturer Part Number: MC68HC908GP32CFB
• Description: IC MCU 8MHZ 32K FLASH 44-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GP32CFB

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 33
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-QFP
• For Use With: M68EVB908GP32 - BOARD EVALUATION FOR HC908GP32
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

19.3 SIM Bus Clock Control and Generation
19.3.1 Bus Timing
19.3.2 Clock Startup from POR or LVI Reset
MC68HC908GP32
MOTOROLA
OSCSTOPENB
CONFIG
FROM
OSC2
OSC1
•
MC68HC08GP32
PHASE-LOCKED LOOP (PLL)
CGMRCLK
OSCILLATOR (OSC)
The bus clock generator provides system clock signals for the CPU and
peripherals on the MCU. The system clocks are generated from an
incoming clock, CGMOUT, as shown in
come from either an external oscillator or from the on-chip PLL.
Section 7. Clock Generator Module
In user mode, the internal bus frequency is either the crystal oscillator
output (CGMXCLK) divided by four or the PLL output (CGMVCLK)
divided by four.
When the power-on reset module or the low-voltage inhibit module
generates a reset, the clocks to the CPU and peripherals are inactive
Figure 19-3. CGM Clock Signals
—
Rev. 6
System Integration Module (SIM)
CGMXCLK
CGMOUT
SIMDIV2
SIM COUNTER
÷ 2
TO TIMTB15A, ADC
(CGMC).)
SIM Bus Clock Control and Generation
Figure
GENERATORS
SIM
BUS CLOCK
System Integration Module (SIM)
USER MODE
MONITOR MODE
19-3. This clock can
Technical Data
SIMOSCEN
PTC3
IT12
TO REST
OF CHIP
IT23
TO REST
OF CHIP
(See
281