Sim Interface; Uart Interface - LG KF750 Service Manual

3. TECHNICAL BRIEF

3.1.5 SIM Interface

SIM interface scheme is shown in Figure3-1-6.
SIMDAT0, SIMCLK0, SIMRST0 ports are used to communicate DBB(Asta) with ABB(Veronica) and
filter.
SIMDAT0
SIMCLK0
SIMRST0
Asta
SIMDAT0
SIMCLK0
SIMRST0

3.1.6 UART Interface

UART signals are connected to Asta GPIO through IO connector
Resource
ACC_GPIO_2
ACC_GPIO_3
APP_GPIO_0
APP_GPIO_1
LGE Internal Use Only
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
SIMVCC
VDD
E Veronica
10K
SDAT SIMDAT
SCLK
SRST SIMRST
Figure 3-1-7. SIM Interface
Name
UART0
ACC_UART_RX
ACC_UART_TX
UART1
APP_UART_RX
APP_UART_TX
Table 3-1-3. UART Interface
- 30 -
10K
SIMCLK
Note
ACC Receive Data
ACC Transmit Data
APP Receive Data
APP Transmit Data
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VDD
DAT
CLK CARD
RST