Samsung SF-830 Service Manual page 144

Intelligent scan motor controller
(1) Automatic acceleration/deceleration/uniform velocity
(2) Data memory : 256x16bits = 4Kbits (internal)
Auto-Run
Automatic CLK_LINE (line processing start control) and •'TG (line scan start control) signal generation|
(1) Available resynchronization of øTG signal
(2) programmable øTG's period & CLK_LINE's occurrence number
Processed data output format in DTM(Data Transfer Module)
(1) DMA mode : Burst/On-demand mode
(2) CDIP I/F : LINE_SYNC, PIXEL_SYSNC, PIXEL_DATA[7:0]
• 36 General Purpose Input/Output : 8(GPO), 28(GPIO)
• Black/White reversion, and Image Mirroring support
DATA MEMORY
CPU
(Jupiter)
ADD R- BUS
DAT A- BUS
Samsung Electronics
ADD R BU S
DMA Controller
DATA BUS
L IN E_PERIOD
Scan/Motor
Driver
AFE Co ntro l
ADDR- BUS
Tx_A, Tx_B,
DAT A- BUS
n Tx_A, nTx_B
CIP3
<External interface with CIP3>
(Jupiter)
T T
CLK_LINE R R
D D
CLK_PIX
M M
Image
A A
IW IN A R
Processor
C E
K Q
ADC _CLK
CD S2 _CLK
Sig na l
Ana lo g Si gn al
PI_TG
Scanner
PI1 , PI2
D OCU MENT IMAGE
CIRCUIT DESCRIPTION
1M bit
SRAM
AFE
12b it ADC
12 b it (R/ G/ B)
Repair Manual
3-25