MC68HC908LK24CFU Freescale Semiconductor, MC68HC908LK24CFU Datasheet - Page 109

• Manufacturer Part Number: MC68HC908LK24CFU
• Description: IC MCU 24K FLASH 8MHZ SPI 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908LK24CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, IRSCI, SPI
• Peripherals: LCD, LVD, POR, PWM
• Number Of I /o: 40
• Program Memory Size: 24KB (24K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

8.1 Contents
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
Data Sheet — MC68HC908LJ24
Section 8. Clock Generator Module (CGM)
8.2
8.3
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.4.6
8.4.7
8.4.8
8.4.9
8.5
8.5.1
8.5.2
8.5.3
8.5.4
8.5.5
8.5.6
8.5.7
8.5.8
8.6
8.6.1
8.6.2
8.6.3
8.6.4
8.6.5
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
CGM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Oscillator Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Phase-Locked Loop Circuit (PLL) . . . . . . . . . . . . . . . . . . . 114
PLL Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Acquisition and Tracking Modes . . . . . . . . . . . . . . . . . . . . 116
Manual and Automatic PLL Bandwidth Modes. . . . . . . . . . 116
Programming the PLL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Special Programming Exceptions . . . . . . . . . . . . . . . . . . . 122
Base Clock Selector Circuit . . . . . . . . . . . . . . . . . . . . . . . . 122
CGM External Connections . . . . . . . . . . . . . . . . . . . . . . . . 123
External Filter Capacitor Pin (CGMXFC) . . . . . . . . . . . . . . 124
PLL Analog Power Pin (V
PLL Analog Ground Pin (V
Oscillator Output Frequency Signal (CGMXCLK) . . . . . . . 124
CGM Reference Clock (CGMRCLK) . . . . . . . . . . . . . . . . . 124
CGM VCO Clock Output (CGMVCLK) . . . . . . . . . . . . . . . . 125
CGM Base Clock Output (CGMOUT). . . . . . . . . . . . . . . . . 125
CGM CPU Interrupt (CGMINT) . . . . . . . . . . . . . . . . . . . . . 125
PLL Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
PLL Bandwidth Control Register . . . . . . . . . . . . . . . . . . . .128
PLL Multiplier Select Registers . . . . . . . . . . . . . . . . . . . . . 130
PLL VCO Range Select Register . . . . . . . . . . . . . . . . . . . .131
PLL Reference Divider Select Register . . . . . . . . . . . . . . . 132
Clock Generator Module (CGM)
DDA
SSA
) . . . . . . . . . . . . . . . . . . . . . . 124
) . . . . . . . . . . . . . . . . . . . . . 124
Data Sheet
109