GX500 Operational Description Revision A
LG Electronics 21/143 LGE Property
3.2.1.4 RF Interface (T_OUT)
S-Gold3 uses this interface to control RF IC and Peripherals. 13 signals are provided switch on/off RF ICs
Periodically each TDMA frame.
Table 3-2. RF Interface Spec.
T_OUT
Resource Interconnection Description
T_OUT0 TXON_PA PAM Power on
T_OUT1 FE2 FEM Control
T_OUT2 PA_BAND TX RF band select
T_OUT3 FE1 FEM control
T_OUT6 PA_MODE PAM Mode select
3.2.1.5 USIF Interface
GX500 have three USIF Drivers as follow :
- USIF1 : Hardware Flow Control / SW upgrade / Calibration
- USIF2 : Not used Rx, Tx and CTS, RTS use BT Interface
- USIF3 : BT Interface
Table 3-3. USIF Interface Spec.
3.2.1.6 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 3-4. S-Gold3 ADC channel usage
ADC channel
Resource Interconnection Description
M0 BAT_ID Battery temperature measure
M1 RF_TEMP RF block temperature measure
M8 VSUPPLY Battery supply voltage measure
Resource Name Remark
USIF1
USIF1_TXD SIM1_UART_TX Transmit Data
USIF1_RXD SIM1_UART_RX Receive Data
USIF1_CTS USB_SE0_VM USB
USIF1_RTS USB_DAT_VP USB
USIF2
USIF2_CTS SIM1_BT_CTS BlueTooth
USIF2_RTS SIM1_BT_RTS. BlueTooth
USIF3
USIF3_TXD SIM1_BT_TX BT Transmit tx
USIF3_RXD SIM!_BT_RX BT Receive rx
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