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3. TECHNICAL BRIEF
| #USIF: Universal Serial IF |
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| USIF_TXD_MTSR | UART_BT_TX | BT UART data output |
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| USIF_RXD_MRST | UART_BT_RX | BT UART data input |
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| USIF_SCLK | BT_VCXO_EN | BT vcxo (26MHz) enable |
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| #I2S1: |
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| I2S1_CLK0 | I2S1_CLK | BT synchronous data clock |
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| I2S1_RX | I2S1_RX | BT synchronous data input |
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| I2S1_TX | I2S1_TX | BT synchronous data output |
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| I2S1_WA0 | I2S1_WA0 | BT synchronous data sync |
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| #MMCI: |
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| MMCI_DAT1 | MMC_D1 | uSD Card Data (1) |
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| MMCI_DAT2 | MMC_D2 | uSD Card Data (2) |
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| MMCI_DAT3 | MMC_D3 | uSD Card Data (3) |
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| #Voiceband: Analog Interface |
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| EP_N | BB_SND_L | For Speaker |
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| EP_P | BB_SND_R | For Speaker |
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| HS_N | RCV_N | For Receiver |
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| EP_CM | NA |
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| HS_P | RCV_P | For Receiver |
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| MIC1_N | MIC_N | For Mic |
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| MIC1_P | MIC_P | For Mic |
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| MIC2_N | HS_MIC_N | For Headset Mic |
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| MIC2_P | HS_MIC_P | For Headset Mic |
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| VMIC | MICBIAS | Power for MIC |
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| #Measurement |
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| M0 | BAT_ID | Battery temperature measure |
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| M1 | RF_TEMP | RF block temperature measure |
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| M2 | LCD_ID | LCD ID measure (Hitachi LCD_ID = 0) |
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| M7 | GND |
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| M8 | VBAT | Battery voltage measure |
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| M9 | NA |
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| M10 | JACK_TYPE JACK | type measure (Not used) |
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| #JTAG |
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| TDO | TDO | JTAG |
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| TDI | TDI | JTAG |
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| TMS | TMS | JTAG |
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LGE Internal Use Only | - 26 - | Copyright © 2008 LG Electronics. Inc. All right reserved. | |
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| Only for training and service purposes |