LG GD580 - Sending and Entering Text Messages

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Only for training and service purposes

LGE Internal Use Only

3. Technical brief

3.1.5 SIM Interface

SIM interface scheme is shown in Figure3-1-7.

SIMDAT0, SIMCLK0, SIMRST0 ports are used to communicate DBB(DB3150) with

ABB(AB3000) and filter.

Table 3-1-2. SIM Interface

Figure 3-1-7. SIM Interface

SIM (Interface between DBB and ABB)

SIMDAT0 SIM card bidirectional data line

SIMC

LK0 SIM card reference clock

SIMRST0 SIM card async/sync reset

VDD

DAT

CLK CARD

RST

SIMVCC

AB3000

SDAT SIMDAT

SCLK SIMCLK

SRST SIMRST

DB3150

SIMDAT0

SIMCLK0

SIMRST0

VDD

10K

3.1.6 UART Interface

UART signals are connected to DB3150 GPIO through IO connector

Table 3-1-3. UART Interface

UART0

Resource Name Note

ACC_GPIO_2 ACC_GP02_UART0_RX ACC Receive Data

ACC_GPIO_3 ACC_GP03_UART0_TX ACC Transmit Data

UART1

APP_GPIO_0 APP_GP00_UART_RX APP Receive Data

APP_GPIO_1 APP_GP01_UART_TX APP Transmit Data

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