5 uart3 - td3, rd3 (designated for future use), Transmitted data 3 (td3), Received data 3 (rd3) – Sony Ericsson GM47 User Manual

Page 59: 9 sim card related signals, Uart3 - td3, rd3 (designated for future use), Sim card related signals

2. SYSTEM CONNECTOR INTERFACE

LZT 123 7263 R1C

2.8.5 UART3 - TD3, RD3 (designated for future use)

UART3 is a full duplex serial communication port with transmission
and reception lines. It has the same timing and electrical signal
characteristics as UART1, TD and RD.

Transmitted Data 3 (TD3)

TD3 is used by your application to send data to the module via UART3.

Received Data 3 (RD3)

RD is used to send data to your application via UART3.

2.9 SIM Card Related Signals

These connections allow you to communicate with the SIM card holder
in you application.

Note!

The distance between the SIM card holder and the module can be up to
25cm.

This SIM interface allows the use of 3V and 5V SIM cards. By default
it works on 3V levels but will automatically switch to 5V, if a 5V SIM
card is fitted.

Pin

Signal

Dir

Description

SIMVCC

SIM card power supply

SIMPRESENCE

SIM card presence

SIMRST

SIM card reset

SIMCLK

SIM card clock

SIMDATA

I/O

SIM card data

This manual is related to the following products:

GM48