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Only for training and service purposes

LGE Internal Use Only

3. TECHNICAL DESCRIPTION

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.

Table 3-1-2. SIM Interface

Figure 3-1-7. SIM Interface

3.1.6 UART Interface

UART signals are connected to DB3200 GPIO through IO connector

Table 3-1-3. UART Interface

SIM (Interface between DBB and ABB)

SDAT SIM card bidirectional data line

SCLK SIM card reference clock

SRST SIM card async/sync reset

VDD

DAT

CLK CARD

RST

SIMVCC

AB3100

SDAT SIMDAT

SCLK SIMCLK

SRST SIMRST

DB3200

SDAT

SCLK

SRST

VDDE_1V8

10K

UART0

Resource Name Note

ACC_GPIO_2 ACC_UART0_RX ACC Receive Data

ACC_GPIO_3 ACC_UART0_TX ACC Transmit Data

UART1

APP_GPIO_0 APP_UART_RX APP Receive Data

APP_GPIO_1 APP_UART_TX APP Transmit Data

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