Sharp AR-PB8 - Manual (Page 24)

[9] CIRCUIT DIAGRAM
1. BLOCK DIAGRAM
CPU
NR4650
(Internal 133MHz)
G/A (1)
SYSAD[63:0] SYSCMD[8:0]
SYSAD[31:0]
SYSAD[53:33]
SYSAD[31:0] RAD[21:1]
RCS_[3:0]
PIACS1_
PIACS0_
MD[63:0]
MA[11:0]
RAM
8MB
RAM
DIMM168 64MB Max
RAM
DIMM168 64MB Max
MD[63:0] MBA[11:0]
RAS0 CAS[7:0]
Digital copier I/F
CY2292
14.318MHz
44.44MHz
14.318MHz
MASTERCLK
MASTERCLK
SCLK
VFCLK
SYSAD[15:0]
RAD[5:2]
Boot ROM
Code ROM 0
Code ROM 1
DIMM72
Optional
(AR-PS1)
SYSAD[31:0]
RAD[21:0]
RAD[21:0]
RAD[21:0]
SYSAD[31:0]
SYSAD[31:0]
G/A (2)
EEPROM
PARACONN
PDATA[7:0]
SCLK
MODECLK
NETWORKCONN
LDT[15:0] SYSAD[15:0]
D9001MFH
LDT[7:0]
RAD2
PIACS2_
VFCLK
81.2376MHz
RCS1_
RCS0_
RCS2_
MODEIN
MODEIN
MBRAS1 MBRAS2
RAS0
CAS[7:0]
MBRAS1
CAS[7:0]
MBRAS2
CAS[7:0]
22.22MHz
2MB
2MB
AR-PB8
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