Blu DASH 3.5, Service Manual

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Digital baseband function: Memory, LCM, GPIO interface, Keypad interface etc.
Analog baseband function: AUDIO (including MIC, Receiver, Speaker) ,Camera, Video,
Ambient light and Proximity sensor, Power management, RTC, Charge control, etc.
RF function: RF front-end module, Antenna, RF transceiver, GSM/WCDMA communication
system, etc.
2.3 Base band circuit
MSM7225A baseband System Architecture as following:
Processing features:
◆
High-performance ARM CORTEX A5 800 MHz application processor :
1
）
ARM architecture v7
2
）
32 KB instruction and 32 KB data cache
3
）
256 KB ARM L2 cache (L2C - 310)
4
）
8-stage In-order pipeline with dynamic branch prediction
5
）
Supports the ARM and Thumb instruction sets, and Jazelle technology to enable
direct execution of Java byte-codes
◆ Industry standard ARM926EJ-S 400 MHz embedded microprocessor subsystem 1)
16 KB instruction and 16 KB data cache
2) ARM version 5TEJ instructions