SM5902AF Datasheet, PDF (36/40 Pages) Nippon Precision Circuits Inc – compression and non compression type shock-proof memory controller

SM5902AF
Connection example
Micro-
controller
YMDATA
YMCLK
YMLD
ZSENSE
SM5902
UC1 to UC5
DIT
YBLKCK
YFCLK
YFLAG
DSP
Matsushita
MN662740 ^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
NCAS2
CLK
NRESET
YDMUTE
DRAM 2
RAS
WE
A0 to A9
D0 to D3
CAS OE
Micro-
controller
YMDATA
YMCLK
YMLD
ZSENSE
SM5902
UC1 to UC5
DIT
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
NCAS2
ZSCK
ZLRCK
ZSRDATA
DA
DRAM 2
RAS
WE
A0 to A9
D0 to D3
CAS OE
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 SM5902 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-36