Kyocera FS-1800 - Main Board KP-858 for FS-3800;3800 N Models

4-27
FS-1800/1800N | FS-3800/3800N
SDRAM
U10, U11
System
DIMM
[board]
CSN [1:0],
OEN0,
WEN0
YS01
U03-U05
Address
Latch
LA [22:2]
ALATCH
ROMA [4:2]
CPUD [31:0]
PVIDEO [7:0], BD, FSYNC, RSTOUTN
XLIDATA, SRCCLKN
U16
CSN2,
OEN0,
WEN0
CPUD [31:24]
LA [3:2]
CPUD [15:0]
CPUA [31:0]
CPUD [31:0]
U01
BCLK, BGN,
TAN, TEAN,
RSTOUTN, CPUINTN,
DBGN, AACKN
ABBN, DBBN, TBSTN,
TSIZ [2:0], TT1, TT3
X01
X’tal
50.0000 MHz
X02
X’tal
25.76930 MHz
YS02
YS03
SDA [12:0], SDBA [1:0]
SDD [31:0]
SDCLK, SDCKE,
SDCSN [5:0],
SDRAS, SDCAS,
SDWEN,
DQMUU, DQMUM,
DQMLM, DQMLL
IICSDA, IICSCL
YC05
CFD [15:0]
CFCSM1, CFCSN2,
CFOEN1, CFWEN1,
CDET1A, CDET1B,
CFRST1, CFWAIT1
U06-U07
Buffers
EXTBOEN,
EXTDIR
U08, U09S
ROMA1
LA [21:2]
FONTs
CSN [3:2]
OEN1,
(WEN0)
LD [15:0]
LA22,
LA [11:2]
YC06
Option
hard disk
(Microdrive)
LD [15:0]
CFCSN1, CFCSN2,
CFOEN2,
CFWEN2,
CDET2A, CDET2B,
CFRST2,
CFWAITN2
LA [16:2]
LD [15:0]
YC04
KUIO
KUIOCSN1
IORN1, IOWN1,
OPRDY1,
DMAACKN1
OPRST1,
IODTACKN1,
OPIRN1,
DMAREQ1
U12-U15
Buffers
EXTBOEN,
CFOEN1
CPU
PowerPC740
200 MHz
Option
memory card
(CompactFlash)
,
Image
chip
Expanding
SDRAM
(DIMM)
Expanding
SDRAM
(DIMM)
SCLK, SI, SO, SDIR, BD,
ENGIRN, SBSY, VDFON,
VDOUTP, VDOUTN,
FPDIR, FPCLK, PFDAT
YC07
YC01
Centronics
Buffer
Serial
Driver
P1284HD,
ACK,
BUSY,
PERROR,
SELECT,
FAULT,
P1284DIR,
SELECTIN,
STROBE,
AUTOFD,
INIT,
P1284DIR
U17
U22T
U31
U18,
U19E
+5 V
U20
+3.3 V
YC03
Serial
Interface
YC02
Parallel
Interface
Regulator
+5 V
U24
+3.3 V
Regulator
+5 V
U28
+3.3 V
Regulator
+5 V
U21
+2.5 V
Regulator
Engine
Board
2nd Optional
Interface
AND NAND
XTXD,
XDTR,
XRTS,
XDSR,
XCTS,
XRXD,
RSSEL
U02
ASIC
Main board KP-858 for FS-3800/3800N models
Figure 4-3-5 Main board KP-858 circuit block diagram