Sharp UX-177 - Page 46

(2) Panel control
The following controls are performed by the SFE-LC.
• Operation panel key scanning
• Operation panel LCD display
(3) Mechanism/recording control block
• Recording control block diagram (1)
Line
Interface
TEL/LIU
CCD PWB
Integrated
Facsimile
Controller
(IFC-LFE)
OPO[4:0]
OPI[3:0]
TEST
LEDCT
LCDCS
STRB[3:0]
STRBPOL
THADI
PDAT
PCLK
PLAT
PM[3:0]*
VIDCTL[1:0]
START
CLK2
CLK1
CLK1n
+VREF
-VREF
SM[3:0]*
Operator
Panel,
Keypad,
LEDs & LCD
Printer Data
Control &
Sensors
Printer 
Motor
Drivers
Scanner
Controls &
Sensors
Scanner
Video
Preprocessing
VIN
Scanner
Motor Drivers
GPIO
(16 Lines)
General
Purpose I/O
TXD**
RXD**
Sync/Async
Serial
Port
SCLK**
BATRSTn
RESETn
VBAT
TONE
TSTCLK
REGDMA
SYNC
WAITn
PWRDWNn
XIN
XOUT
RTC
Crystal
SYSCLK
MIROn
MCSn
MONOFAX
Facsimile
Modem

R96SHF
A[19:0]
RDn
WRn
D[7:0]
ROMCSn
D[7:0]
RDn
WRn
A[4:0]
CS[4:0]n
DEBUGn
VDD
VSS
RDn
WRn
D[7:0]
ROMCSn
CS[4:0]n
A[19:0]
External
Bus
TRANOUT
RECIN
GPIO
GPIO
NOTE: * Altemative GPO lines
** Altemative GPO lines.
PANEL/
LCD PWB
THERMAL
HEAD
MOTOR
Fig. 4
UX-177H
5 – 5