LG GS290 Service Manual page 11

3. TECHNICAL BRIEF
Table 3. USIF Interface Spec .
Resource Name
USIF1
USIF1_TXD TXD
USIF1_RXD RXD
USIF1_CTS USB_DP
USIF1_RTS USB_DM
USIF2
USIF2_TXD NC
USIF2_RXD Other function
USIF2_CTS BT_CTS
USIF2_RTS BT_RTS.
USIF3
USIF3_TXD BT_TX
USIF3_RXD BT_RX
3.2.6. ADC channel
BBP ADC block is composed of 10 external ADC channel. This block operates charging process and other
related process by reading battery voltage and other analog values.
Table 4. S-Gold3 ADC channel usage
ADC channel
Resource Interconnection
M0 BAT_ID
M1 RF_TEMP
M2 N.C
M3 N.C
M4 N.C
M5 N.C
M6 N.C
M7 N.C
M8 VSUPPLY
M9 N.C
M10 N.C
LGE Internal Use Only - 22 -
Remark
Transmit Data
Receive Data
NC
-
BT Transmit tx
BT Receive rx
Description
Battery temperature measure
RF block temperature measure
Battery supply voltage measure
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.2.7. GPIO map
Over a hundred allowable resources, GS290 is using as follows except dedicated to SIM and Memory. GS290
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in below
table
Table 5 S-Gold3 GPIO pin Map
Port Function Net Name Description
KEY MATRIX
KP_IN0
KP_IN1
KP_IN2
KP_IN3 KP_IN(3)
KP_IN4
KP_IN5 KP_IN(5)
KP_IN6 KP_IN(6)
KP_OUT0 BT_HOST_WAKEUP
KP_OUT1 KP_OUT(0)
KP_OUT2 KP_OUT(2)
KP_OUT3 KP_OUT(3)
USIF1
USIF1_RXD UART_RX UART, RS232 Data
USIF1_TXD UART_TX UART, RS232 Data
USB_DAT_VP USB Data
USIF1_RTS_N
USIF1_CTS_N USB_SE0_VM USB Data
USIF2
USW_INT MUIC Interrupt Singnal
USIF2 _RXD
USIF2 _TXD NA Not used
USIF2_RTS_N UART_BT_RTS Bluetooth RTS
USIF2_CTS_N UART_BT_CTS Bluetooth CTS
USIF3
USIF3 _RXD UART_BT_RX Bluetooth RX
USIF3 _TXD UART_BT_TX Bluetooth TX
CLK
CLK32K CLK32k For FM Radio, BT CLK32K
GPIO_22 Not used
CAMERA I/F
Copyright © 2010 LG Electronics. Inc. All right reserved. - 23 -
Only for training and service purposes
3. TECHNICAL BRIEF
LGE Internal Use Only