Only For Training And Service Purposes - LG GT500 Service Manual

3.1.5 SIM Interface
SIM interface scheme is shown in Figure3-1-7.
SDAT, SCLK, SRST ports are used to communicate DBB(DB3200) with
ABB(AB3100) and filter.
SDAT
SCLK
SRST
DB3200
SDAT
SCLK
SRST
3.1.6 UART Interface
UART signals are connected to DB3200 GPIO through IO connector
Resource
ACC_GPIO_2
ACC_GPIO_3
APP_GPIO_0
APP_GPIO_1
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Only for training and service purposes

SIM (Interface between DBB and ABB)
SIM card bidirectional data line
SIM card reference clock
SIM card async/sync reset
Table 3-1-2. SIM Interface
VDDE_1V8
AB3100
10K
SDAT
SCLK
SRST
Figure 3-1-7. SIM Interface
UART0
Name
ACC_UART0_RX
ACC_UART0_TX
UART1
APP_UART_RX
APP_UART_TX
Table 3-1-3. UART Interface
3. TECHNICAL DESCRIPTION
SIMVCC
10K
SIMDAT
SIMCLK
SIMRST
Note
ACC Receive Data
ACC Transmit Data
APP Receive Data
APP Transmit Data
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VDD
DAT
CLK CARD
RST
LGE Internal Use Only