Sim Card Interface - LG -A270 Service Manual

Hide thumbs Also See for LG-A270:
Table of Contents

Advertisement

3.7 SIM Card Interface

SIM_DATA_1
The Main Base Band Processor(MT651) provides SIM Interface Module.
The MT651 checks status Periodically During established call mode whether SIM card is inserted or not,
but it doesn't check during deep sleep mode. In order to communicate with SIM card, 3 signals
SIM_DATA_1, SIM_CLK_1, SIM_RST_1.
And This model supports 1.8/3V SIM Card.
Signal
SIM_RST_1
SIM CLK 1
SIM_DATA_1
LGE Internal Use Only
SIM_CONNECTOR_1
VSIM1
VSIM1
J200
C5
GND1
VCC
C6
VPP
RST
C7
IO
CLK
C12
GND5
GND2
C11
GND4
GND3
Figure 3.7.1. SIM CARD Interface
This signal makes SIM card to HW default status.
This signal is transferred to SIM card.
- 9 -
VSIM1
C1
C2
C3
C9
C223
C10
1u
Description
This signal is interface datum.
Copyright © 01 LG Electronics. Inc. All right reserved.
3. TECHNICAL BRIEF
SIM_RST_1
SIM_CLK_1
Only for training and service purposes

Advertisement

Table of Contents
loading

Table of Contents