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3. TECHNICAL BRIEF
3.10.13 Host Port
• Two flavors:
- Generic interface 8/16-bit Intel style.
Connects as memory map (4-bit address)
- LCD like 8/9/16 bit multiplexed bus.
Connects as an LCD (1-bit address)
• Bypass mode - From Host port up to two LCDs, audio codec and other peripherals
• Support for messaging and data transfers (DMA)
3.10.14 Clocks
• Main clock input frequency, 10 to 31 MHz:
- Directly from system PMU main clock and bypass its control
- Embedded crystal oscillator (12Mhz)
- Optional GPS TCXO
• Four configurable clock-out pins to drive external components:
e.g. Audio codec, Sensor, PWM)
3.10.15 Boot
• Host boot
• Standalone boot
3.10.16 Debug
• JTAG for code debug
• UART for fast system ramp up
3.10.17 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
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Summary of Contents for KE990 - Viewty Cell Phone 100 MB
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