sm5903b Seiko NPC Corp., sm5903b Datasheet - Page 29

• Manufacturer Part Number: sm5903b
• Description: Shock-proof Memory Controller
• Manufacturer: Seiko NPC Corp.

Connection example
note1
note 2 When CXD 2517 (Sony) is used
- When double DRAMs are used, the DRAM OE pins should be tied LOW.
- When single DRAM is used, the DRAM OE pin should be tied LOW
Set 85H of microcontroller command (option setting) as setting YFLAG take in;
D5: YFLAGS= 1
D4: YFCKP= 0
or controlled by the SM5903BF NOE signal.
MN662740
Matsushita
CXD2517
controller
controller
converter
Micro-
Micro-
SONY
DSP
D/A
DSP
YSRDATA
YSRDATA
YMDATA
YMDATA
YBLKCK
ZSRDATA
YMCLK
ZSENSE
YDMUTE
YMCLK
ZSENSE
YDMUTE
ZLRCK
YFCLK
YFLAG
YLRCK
YLRCK
YMLD
YMLD
ZSCK
SCOR
XROF
YSCK
YSCK
NRESET
NRESET
CLK
CLK
YFLAG
YFCLK
YBLKCK
SM5903
SM5903
SM5903BF
UC1 to UC5
UC1 to UC5
A0 to A10
A0 to A10
D0 to D3
D0 to D3
ZSRDATA
NCAS2
NCAS2
NRAS
NCAS
NCAS
ZLRCK
NRAS
NWE
NWE
ZSCK
RAS
RAS
A0 to A10
D0 to D3
A0 to A10
D0 to D3
WE
CAS
WE
CAS
DRAM 1
DRAM 1
D
OE
OE
A
NIPPON PRECISION CIRCUITS-29
D0 to D3
A0 to A9
D0 to D3
A0 to A9
NRAS
NWE
NRAS
NWE
RAS
RAS
A0 to A9
A0 to A9
WE
D0 to D3
CAS
WE
D0 to D3
CAS
DRAM 2
DRAM 2
OE
OE