LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3.12.14 Clocks
• Main clock input frequency, 10 to 31 MHz:
❏
Directly from system PMU main clock and bypass its control
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Embedded crystal oscillator (12Mhz)
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Optional GPS TCXO
• Four configurable clock-out pins to drive external components: e.g. Audio codec, Sensor, PWM)
3.12.15 Boot
• Host boot
• Standalone boot
3.12.16 Debug
• JTAG for code debug
• UART for fast system ramp up
3.12.17 Power
• Very low power consumption, smaller than150mW for all intense multimedia applications.
• Low power sleep mode 100 µW
❏
Host can control display audio and peripherals via bypass
• Light sleep mode 500 µW
❏
Specifically for GPS accurate off-line tracking