Huawei Ascend - Synchronizing Information; Managing Your Accounts

Y210 Mobile Phone
Maintenance Manual
9 Principles and Failure Analysis
Issue 1.0 (2012-11-28)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
37
BCM4330
Network
MSM7225A
Description
FM_RXN
-
-
-
FM_VDD2P5
SR_AVDD2P5
-
-
FM_AOUT1
FM_OUT_L
PM8029
LINE_IN_LP
FM OUTPUT
FM_AOUT2
FM_OUT_R
PM8029
LINE_IN_RM
FM OUTPUT
9.4 Peripheral Circuits
9.4.1 Display
The MSM7225A uses Mobile Industry Processor Interfaces (MIPIs) to send instructions and
data to the LCD. The Y210's LCD uses MIPIs, supporting a 60 Hz refresh rate, and requiring
only one pair of differential clock lines, one pair of differential signal lines, and one pair of
power supply lines. The LCD also supports frame synchronization, using the MDP_VSYNC
signals (GPIO_097) as data transmission synchronization signals to avoid screen tearing.

Dot matrix: Half-size VGA (HVGA, 480 x 320 pixels)

Color: 256K colors
Figure 9-10 shows the connections between the MSM7225A and the LCD.
Figure 9-10 Connections between the MSM7225A and the LCD