Subsystem (Pmb9811_X-Goldtm66) - LG -P940 Service Manual

3.7 Subsystem (PMB9811_X-GOLD
The X-GOLD™ 626 is a 3GPP Release 7 dual-mode baseband modem which is expected to connect to an
application processor in order to create a high-end smartphone solution. It can be used to create a data-card
solution as well. This section provides a high-level view of the chip architecture. More details can be found in the
sections that follow.
The X-GOLD™ 626 can be broken into 6 major subsystems: Backbone, Connectivity, Audio, 2GL1, 3GL1, and PMU.
Each of these subsystems play important roles for operation of the modem.
CONFIDENTIAL
01
02
03
04
32kB I-Cache
05
32kB D-Cache
06
07
08
L2 Cache
256 kB
09
10
11
CPU XBAR
12
13
14
15
16
62
EBU
17
18
19
20
21
3GCU
22
MCU
23
ARM7
ETM7
24
ICU
USIF5
25
MACPHY
26
DL-MACPHY
UL-MACPHY
27
28
7
29
30
31
(VDDCore)
32
31
33
VANA
34
35
Measurement
36
37
38
Figure 6 Architecture Block Diagram of the X-GOLD™ 626
39
40
4.1.2 Architectural Characteristics
41
The X-GOLD™ 626 comes along with the following architecture units.
LGE Internal Use Only
42
Preliminary Product Overview
ci
Backbone
ARM11
8kB I-TCM
8kB D-TCM
STM
DMA1
RTC
8-ch
Bridge
LMU
RAM
LMU
ROM
3GL1
2G DSP1
USI COMRAM
ORX
HSDPA
R99ORX
HSIRX
SYNC_TX
HSORX
TxBitProc
TxMod
DPE
Rake
Searcher
Rake
OLP
3G DSP
MRAM
DigRF 3.09
PMU
SD1
SD2
POR
(VDDIO)
VUSB VSIM VMIPI
VPLL VPMU VRTC SSC
Control Unit
TSMU
Fig.3.7 Architecture Block Diagram of X-GOLD™ 626
Fig.3.7 Architecture Block Diagram of X-GOLD™ 626
626)
TM
X-GOLD™ 626 Architecture Concepts
CAPCOM0
ABW SCU CAPCOM1
CEU CGU GPTU 0
DMA2
SPCU GPTU 1
2-ch
Peripheral XBAR
GUCIPH
GSI
Shared
Mem
2GL1
GSM
2G DSP2
Cipher
GSM Channel Equalizer
Timer Decoder Accelerator
DSP DSP
Timer Interrupt
IR
RF IF
Memory
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57
ARC__Overview.fm
3. TECHNICAL BRIEF
X-GOLD™ 626
PMB 9811
Audio
Audio 6
I2S1
DSP1
6
I2S2
Audio
DSP2
DSP
DSP
Timer
Interrupt
Shared Mem
Connectivity
1
FCDP
3 (+2)
USIM
2
USB-FS
(+4)
ICU
6
USB-HS
5
USIF1
2
USB-HSIC
8
MIPI HSI
(+5)
USIF3
7
SD-MMC1
2
I2C1
7 (+7)
MIPI PTI
2 (+10)
PCL/GPIO
5
DAP
USIF2
BB_ ArchitectureOverview.vsd
Only for training and service purposes
Revision 1.0, 2010-04-26
EDD 3.4