Main Controller - Samsung CLX-8640 series Service Manual

2. Product specifications and Description

2.10.1. Main Controller

The main controller consists of the main processor(Chorus4N), memory(DDR3 1GB), flash(128MB), 1G Ethernet PHY,
USB2.0 HUB, Micom(Power/Fuser control), Scan/Video/UI/FAX signal interface connection, motor driving IC, Engine
signal interface connection, power interface.
The main processor (Dual Core 1GHz CPU) controls video, engine, UI display and communicates the various devices. The
HDD is connected to the main controller by SATA cable and to the other device (DADF, TCF, Finisher, Modem) by UART.
1) Main Controller Diagram
MODEM
AVR
(S iLab )
Debg1
Debg2
MS OK
2
E P ROM 32KB
XCRUM
2
I C
Deve
YMCK
S TEP MOT
BLDC MOT
DC MOT
CLUTCH
S OLENOID
S ENS ORS
FAN
2-58
TCF
S CF
FINIS HER
Mico m
UART
S P I
I2C GP IO
CHORUS 4-N
CORTEX-A9 CORTEX-A9
To n er
1GHz
YMCK
32/32KB
L2 1MB
P WM LS U
MTR HP VC
P WM
HVP S
LS U
DADF S CANNER
Mico m CCD/AFE
LCD
S P I UART
CONT
Re CP 4
US B
ARM946
HOS T
1GHz 250MHz
32/32KB 8/8KB
US B
DEV
SRAM 256KB
DDR3
NAND ETHE
S ATA
BUS
BUS
NAND
DDR3
320GB
1GB 128MB
2.5"
Copyright© 1995-2013 SAMSUNG. All rights reserved.
OP E
7" TFT
m DDR
AM3715
256MB
NAND
256MB
US B
US B
P HY HUB
IP
US B
HUB
US B HOS T
GL850
US B DEVICE
RGMII P HY
R
Real Time Co n tro l
. S can /En g in e/Fax
XOA
US B HOS T
P ORT2
US B HOS T
CARD READER
1Gb p s N/W
Lin u x