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4-19
FS-1010
4-3-2 Operation of circuit boards
(1) Main board
Figure 4-3-2 Main board circuit block diagram
Q01
Digital Transistor
Q02
Digital Transistor
YC03
USB I/F
USBINT
USBDN
EDB31-16
EBIU Data bus
EBIU Address bus
VBUL
USBDP
EBA22, EBA10-1
CDWAITN, CDET1-2
CDRST
EBCSN2, EBCSN3
EBOEN1, EBWEN1
YC08
FPRSTN
FPCLK
FPDIR
FPDAT
YC07
YC06
X02 U13
X’tal (System)
X’tal (USB)
X’tal (Video)
25.0000 MHz
48.0000 MHz
X03
X01
YC04
Parallel I/F
26.701882 MHz
LONB
SCKN, SO, PLGCLK
SBSY, SI, SDIR, EGIRN, PDMASKN
PDN
VDFONSPL
OUTPEN
APC I/F
Engine I/F
Operator panel I/F
RSTN
CXIN
VXIN
VXOUT
U11
48MHZIN
PNSELIN
PNSTROBE, PNAUTOFD,
PNNIT
PNACK, PBUSY, PPERROR
PSELECT, PFAULT
PPDATA7-0
YC05
PDATA7-0
NSELIN
Option serial I/F
P1284DIR
DTR, RTS, TXD
CTS, DSR, RXD
RSSEL
YC09
DBTXD
DBRXD, DBCLK
[Debugger connector]
U9
3.3 V Regulator
+5 V1
+3.3 V1
SDRAM Data bus SDD31-0
SDD31-16
SDD15-0
SDCSN1-2
SDA12-0
SDCLK
SDCLK
SDD31-0
SDA12-0
SDA12-0
SDRAM Address bus
YS02
Option
SDRAM
DIMM
Slot
U07
IIC
EEPROM
IICSCL
IICSDA
SDA12-0
SDCSN0
SDCSN0
DQMLM, DQMLL
DQMUU, DQMUM
RASN, CASN, WEN, BA1, BA0, SDCLKE
OPRSTN
OPRDY, DMAACKN, IORN,
IOWN, EBCSN4
DMAREQ, OPACKN, OPIRN
EBA15-1
YC01
Option I/F
KUIO-LV (3.3 V)
EBD31-16
EBD31-0
U03
API ROM
Socket
EBD31-16
EBD31-16
U02
Font
Mask ROM
EBA21-1
EBA21-1
EBCSN1, EBOEN2
EBCSN0, EBOEN2
CPU
U01
PowerPC 200 MHz
RISC processor
(Core ASIC)
EBA22-2
EBCSN0, EBCSN1
EBOEN0, EBWEN0
YS01
System DIMM
Slot 1
(Code ROM)
SDRAM
U05
SDRAM
U04
YC02
Option
Memory
card
slot