SM5901AF Datasheet, PDF (30/31 Pages) Nippon Precision Circuits Inc – compression and non compression type anti-shock memory controller with built-in 1M DRAM

Connection example
SM5901AF
Microcon-
troller
YMDATA
YMCLK
YMLD
ZSENSE
SM5901
UC1 to UC4
DSP
Matsushita
MN662740
YBLKCK
YFLAG
YFCLK
YLRCK
YSCK
YSRDATA
D/A
converter
ZLRCK
ZSCK
ZSRDATA
NRAS
NWE
A0 to A8
D0 to D3
NCAS
DRAM 2
RAS
WE
A0 to A8
D0 to D3
CAS OE
GND
CLK
NRESET
YDMUTE
Microcon-
troller
YMDATA
YMCLK
YMLD
ZSENSE
SM5901
UC1 to UC4
DSP
SONY
CXD2517
SCOR
XROF
GND
YLRCK
YSCK
YSRDATA
YBLKCK
YFLAG
YFCLK
D/A
converter
ZLRCK
ZSCK
ZSRDATA
NRAS
NWE
A0 to A8
D0 to D3
NCAS
DRAM 2
RAS
WE
A0 to A8
D0 to D3
CAS OE
GND
CLK
NRESET
YDMUTE
note1
- When external DRAM is used, the DRAM OE pins should be tied LOW.
note 2 When CXD 2517 (Sony) is used
Set 85H of microcontroller comand (option setting) as setting YFLAG take in;
D5: YFLAGS= 1
D4: YFCKP= 0