MC68HC908GP32CFB Freescale Semiconductor, MC68HC908GP32CFB Datasheet - Page 107

• 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: -

7.1 Contents
MC68HC908GP32
MOTOROLA
Technical Data – MC68HC908GP32•MC68HC08GP32
•
MC68HC08GP32
Section 7. Clock Generator Module (CGMC)
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
7.4.7
7.4.8
7.4.9
7.5
7.5.1
7.5.2
7.5.3
7.5.4
7.5.5
7.5.6
7.5.7
7.5.8
7.5.9
7.5.10
7.6
7.6.1
7.6.2
7.6.3
7.6.4
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
CGMC Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
—
Crystal Oscillator Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Phase-Locked Loop Circuit (PLL) . . . . . . . . . . . . . . . . . . .109
PLL Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . . . . 111
Manual and Automatic PLL Bandwidth Modes. . . . . . . . . . 111
Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Special Programming Exceptions . . . . . . . . . . . . . . . . . . .117
Base Clock Selector Circuit . . . . . . . . . . . . . . . . . . . . . . . . 117
CGMC External Connections . . . . . . . . . . . . . . . . . . . . . . . 118
Crystal Amplifier Input Pin (OSC1). . . . . . . . . . . . . . . . . . . 119
Crystal Amplifier Output Pin (OSC2) . . . . . . . . . . . . . . . . . 119
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . 120
PLL Analog Power Pin (V
PLL Analog Ground Pin (V
Oscillator Enable Signal (SIMOSCEN). . . . . . . . . . . . . . . . 120
Oscillator Stop Mode Enable Bit (OSCSTOPENB) . . . . . . 120
Crystal Output Frequency Signal (CGMXCLK) . . . . . . . . . 121
CGMC Base Clock Output (CGMOUT) . . . . . . . . . . . . . . . 121
CGMC CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . 121
PLL Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
PLL Bandwidth Control Register . . . . . . . . . . . . . . . . . . . . 125
PLL Multiplier Select Register High . . . . . . . . . . . . . . . . . . 127
PLL Multiplier Select Register Low. . . . . . . . . . . . . . . . . . . 128
Rev. 6
Clock Generator Module (CGMC)
DDA
SSA
) . . . . . . . . . . . . . . . . . . . . . . 120
) . . . . . . . . . . . . . . . . . . . . . 120
Technical Data
105