SM5903CF Datasheet, PDF (29/31 Pages) Nippon Precision Circuits Inc – compression and non compression type anti-shock memory controller

Connection example
SM5903CF
Microcon-
troller
YMDATA
YMCLK
YMLD
ZSENSE
SM5903
UC1 to UC5
DSP
Matsushita
MN662740
YBLKCK
YFCLK
YFLAG
YSCK
YLRCK
YSRDATA
D/A
converter
ZSCK
ZLRCK
ZSRDATA
NRAS
NWE
A0 to A10
D0 to D3
NCAS
DRAM 1
RAS
WE
A0 to A10
D0 to D3
CAS OE
DRAM 2
NRAS _RAS
NWE
A0 to A9
WE
A0 to A9
D0 to D3 _{D0 to D3}
CAS OE
NCAS2
CLK
NRESET
YDMUTE
Microcon-
troller
YMDATA
YMCLK
YMLD
ZSENSE
SM5903
UC1 to UC5
DSP
SONY
CXD2517
SCOR
XROF
YBLKCK
YFLAG
YFCLK
YSCK
YLRCK
YSRDATA
NRAS
NWE
A0 to A10
D0 to D3
NCAS
DRAM 1
RAS
WE
A0 to A10
D0 to D3
CAS OE
NRAS
NWE
A0 to A9
D0 to D3
DRAM 2
RAS
WE
A0 to A9
D0 to D3
CAS OE
NCAS2
ZSCK
ZLRCK
ZSRDATA
DA
CLK
NRESET
YDMUTE
note1
- When 2 DRAMs are used, the DRAM OE pins should be tied LOW.
- When single DRAM is used, the DRAM OE pin should be tied LOW
or controlled by the SM5903CF NOE signal.
note 2 When CXD 2517 (Sony) is used
Set 85H of microcontroller command (option setting) as setting YFLAG take in;
D5: YFLAGS= 1
D4: YFCKP= 0
NIPPON PRECISION CIRCUITS-29