LG KE590 Service Manual page 26

ULPDR
GSM_clock_13M
GSM_clock_26M
MPU public
TIPB
DSP
shared
TIPB
ARMPER_CK
CLKM1
This implementation is based on the following:
- The time processing unit (TPU) module is a real-time sequencer dedicated to monitoring GSM
baseband processing.
- The serial port of the time serial port (TSP) module controls both interfaces.
- The real-time TSPACT signal of the TSP module
- The McBSP digital RF module is used for the six-wire data interface.
- The serial radio interface module is used for the two-wire data interface.
- A system clock interface receives a squared 26-MHz clock from the RF IC.
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
OMAPV1030 Radio I/F
TPU
TPU BUS
TSPCLK
TSPEN
TSPDO
TSPDI
TSP
TSPACT3
I/O
TSPACT4
CORE
TSPACT5
MUX
CLKR
DR
FSR
McBSP
digital
RF
CLKX
DX
FSX
PIRXEN
POTXEN
Serial
PODIGRFDO
Radio
IF
PIDIGRFDI
PICLKM
<Fig.8> OMAPV1030 Radio Interface
- 27 -
3. Circuit Description
OMAPV1030 device
digitalrf_rf_clk
digitalrf_rf_cs
digitalrf_rf_data
digitalrf_tx_start
digitalrf_enr
digitalrf_rxen
digitalrf_rx_clk
digitalrf_rx_data
digitalrf_rx_cs
digitalrf_tx_clk
digitalrf_tx_cs /
digitalrf_enable
digitalrf_tx_data /
digitalrf_data
digitalrf_sysclk
LGE Internal Use Only
RF CTRL IF
RF real-
time IF
RF DATA IF