Pc Interface - Toshiba e-STUDIO170F Service Manual

7.2.4

PC Interface

The PC interface provides the following modes: the PC scanner mode in which the document(s) placed
on this machine is read into the PC as data, the PC facsimile transmission mode in which document
data is directly sent from the PC, the PC facsimile reception mode in which the data received is read by
the PC, and the printer mode in which the data sent from the PC is printed.
[ 1 ] PC Scanner
IC53 IC49
MODEM USB controller
MODEM I/F PC I/F
* Details regarding each area of SDRAM used
(3): DSC I/F > SDRAM (PIX area: Scan buffer)
(4): SDRAM (PIX area: Scan buffer) > SDRAM (SYS area: Image memory)
(5): SDRAM (SYS area: Image memory) > SDRAM (PIX area: CODEC buffer)
(6): SDRAM (PIX area: CODEC buffer) > SDRAM (PIX area: PC buffer)
(7): SDRAM (PIX area: PC buffer) > PC I/F
January 2005 © TOSHIBA TEC
PC
IC16
CODEC
( 7 )
CODEC I/F
IC15
ASIC
( Engine controller )
SDRAM controller
( 5 )
IC1 IC1 IC1
SYS area*
SDRAM SDRAM SDRAM
Main PBA
Fig.7-15
7 - 15
PTC I/F
( 6 )
( 4 )
PIX area*
e-STUDIO170F Circuit Description
CIS
( 1 )
IC27
DSC
( 2 )
DSC I/F
( 3 )
7