Sharp UX-B20 - Page 56

UX-B20U/UX-B20C/B25C
5 – 7
2.3. Panel control block
The following controls are performed by the SCE209L.
• Operation panel key scanning
• Operation panel LCD display
2.4. Mechanism/recording control block
• Recording control block diagram
Fig. 3
PIN
OPERATOR
PANEL,
KEYPAD,
LCD
µPD65944
OPO[4:0]*
OPI[3:0]*
LCDCS*
TEST[1:0]
BATRSTN
RESETN
PDAT
CLOCK
INTN
WAIT
ASICRES
GACSN
RDN
WRN
PCLK
PLAT
A[5:0]
D[7:0]
DWEN
CAS_N
RAS_N
D[15:0]
A[11:0]
ALTTONE
TSTCLK
REGDMA
WAITN
SYNC
PWRDWNN
SCANNER
MOTOR DRIVERS
SM[3:0]*
RTC
CRYSTAL
SCANNER
CONTROLS
START
CLK2
XIN
XOUT
INTERNAL
IA
LINE
INTERFACE
DRAM
SCANNER
VIDEO
PREPROCESSING
SERIAL SYNC
PORTS
(SSIF)
VIN
SSCLK[2:1]*
SSTXD[2:1]*
SSRXD[2:1]*
SSSTAT[2:1]*
SYNC/ASYNC
SERIAL PORT
SASIF
SASCLK*
SASTXD*
SASRXD*
GPIOGENERAL
PURPOSE I/O
DEBUGN
VDD
VDRAM
VBAT
VSS
D[7:0]
RDN
A[23:0]
WRN
ROMCSN
CS[5:0]N*
CAS[0,1]N, RASN, DWRN
SCE209L
1-CHIP
FAX ENGINE
EXTERNAL BUS
ADVA
ADGA
TONE
INTPWRDWNEN
SYSCLK
CRYSTAL
SXIN
SXOUT
TELEPHONE
LINE
TXOUT
RXIN
FLASH
MEMORY
RDN
FLASHWRN
ROMCSN
NOTES: * ALTERNATIVE GPO, GPI OR GPIO LINES
**FOR SAMSUNG NAND-TYPE FLASH
INK
PWB
PIN SENSOR
DRAM
CLK
THUNDERBOLT
SDI
SCK
CSN
TBRESN
PHD[3:0]
LHCS, LCN, PLAD, PENABLE
SPERSN, ACLK, AGATE, PCLK
OK2PRT, POS, PHID1