Sharp UX-B700 Service Manual page 62

UX-B700U
FO-B1600U
(3) Panel control block
The following controls are performed by the SCE214.
•
Operation panel key scanning
•
Operation panel LCD display
(4) Mechanism/recording control block
•
Recording control block diagram
DWEN
CAS_N
RAS_N
DRAM
D[7:0]
A[9:0]
DATA[7:0]
MOTOR DRIVERS
PREPROCESSING
SERIAL SYNC
PRINTER
PWB
OPO[4:0]*
OPERATOR
OPI[3:0]*
PANEL,
KEYPAD,
LCD LCDCS*
CLOCK
IVTN
WAIT
ASICRES
GACSN
RDN
WRN
PDAT
PCLK
PLAT
PD65944 A[5:0]
D[7:0]
SCANNER SM[3:0]*
START
SCANNER
CLK2
CONTROLS
SCANNER
VIN
VIDEO
SSCLK[2:1]*
SSTXD[2:1]*
PORTS
SSRXD[2:1]*
(SSIF)
SSSTAT[2:1]*
GENERAL GPIO
PURPOSE I/O
SASCLK*
SYNC/ASYNC
SASTXD*
SERIAL PORT
SASRXD*
SASIF
SN-COVER
PIN
TEST[1:0]
BATRSTN
RESETN
TONE
ALTTONE
TSTCLK
REGDMA
WAITN
SYNC
PWRDWNN
INTPWRDWNEN
XIN
XOUT
SXIN
SXOUT
INTERNAL
SCE214
1-CHIP
FAX ENGINE
EXTERNAL BUS
A[23:0]
D[7:0]
RDN
WRN
ROMCSN
CS[5:0]N*
DEBUGN
VDD
VDRAM
VBAT
VSS
ADVA
ADGA
Fig. 3
5 – 7
RTC
CRYSTAL
SYSCLK
CRYSTAL
TELEPHONE
LINE
RXIN
LINE
TXOUT
INTERFACE
IA
FLASHWRN
PWRDWN
RESET
ROMCSN
IC
FLCSN
RDN
CAS[0,1]N, RASN, DWRN
NOTES: * ALTERNATIVE GPO, GPI OR GPIO LINES
**FOR SAMSUNG NAND-TYPE FLASH
FLASH
MEMORY
FLASH
MEMORY
DRAM