Panel Control Block; Mechanism/Recording Control Block - Sharp FO-71 Service Manual

FO-71RA
FO-51RA

(3) Panel control block

The following controls are performed by the SCE209.
•
Operation panel key scanning
•
Operation panel LCD display

(4) Mechanism/recording control block

•
Recording control block diagram (1)
OPO[7:0]*
OPERATOR
OPI[3:0]*
PANEL,
LEDCTL*
KEYPAD,
LEDS & LCD
LCDCS*
STRB[3:0]
STRBPOL
THADI
PRINTER DATA
PDAT
CONTROL &
PCLK
SENSORS
PLAT
PM[3:0]*
PRINTER &
SCANNER
SM[3:0]*
MOTOR DRIVERS
START
CLK2
SCANNER
CONTROLS &
CLK1
SENSORS
CLK1N
VIDCTL[1:0]
VIN
VREFP
SCANNER
VIDEO
VREFN
PREPROCESSING
IVREFP
IVREFN
SSCLK[2:1]*
SERIAL SYNC SSTXD[2:1]*
PORTS
SSRXD[2:1]*
(SSIF)
SSSTAT[2:1]*
GENERAL GPIO
PURPOSE I/O
SASCLK*
SYNC/ASYNC
SASTXD*
SERIAL PORT
SASIF SASRXD*
TEST[1:0]
BATRSTN
RESETN
TONE
ALTTONE
TSTCLK
REGDMA
WAITN
SYNC
PWRDWNN
INTPWRDWNEN
XIN
XOUT
SXIN
SXOUT
SCE209
1-CHIP
FAX ENGINE
A[23:0]
D[7:0]
RDN
WRN
ROMCSN
CS[5:0]N*
WRPROTN
FRDN*
FRWN*
FCLE*
FCSN[2:0]
DEBUGN
VDD
VDRAM
VBAT
VSS
ADVA
ADGA
Fig. 3
5 – 7
RTC
CRYSTAL
SYSCLK
CRYSTAL
RXIN
INTERNAL
TXOUT
IA
EXTERNAL BUS
RDN, ROMCSN
CAS[0,1]N, RASN, DWRN
CS3N,
CS4N**
FLASH MEMORY
(OPTION)
NOTES: * ALTERNATIVE GPO, GPI OR GPIO LINES
**FOR SAMSUNG NAND-TYPE FLASH
TELEPHONE
LINE
LINE
INTERFACE
FLASH
MEMORY
DRAM
D7[7:0]