MD3331-D64-V3 M-Systems Inc., MD3331-D64-V3 Datasheet - Page 46

• Manufacturer Part Number: MD3331-D64-V3
• Description: Diskonchip Millennium Plus
• Manufacturer: M-Systems Inc.

9.2
9.2.1 Standard Interface
DiskOnChip Millennium Plus uses an SRAM-like interface that can easily be connected to any microprocessor bus.
With a standard interface, it requires 13 address lines, 8 data lines and basic memory control signals (CE#, OE#,
WE#), as shown in Figure 18 below. Typically, DiskOnChip Millennium Plus can be mapped to any free 8KB
memory space. In a PC compatible platform, it is usually mapped into the BIOS expansion area. If the allocated
memory window is larger than 8KB, an automatic anti-aliasing mechanism prevents the firmware from being loaded
more than once during the ROM expansion search.
Notes: 1.
46
System Interface
2.
3.
The 0.1 µF and the 10 nF low-inductance high-frequency capacitors must be attached to each of the
device’s VCC and VSS pins/balls. These capacitors must be placed as close as possible to the package
leads.
DiskOnChip Millennium Plus is an edge-sensitive device. CE#, OE# and WE# should be properly
terminated (according to board layout, serial parallel or both terminations) to avoid signal ringing.
All capacities support the standard interface.
Output Enable
Write Enable
Chip Enable
Address
Chip ID
Reset
Data
0.1 uF
Figure 18: Standard System Interface
A[12:0]
D[15:0]
OE#
ID[1:0]
CE#
WE#
RSTIN#
10 nF
Data Sheet, Rev. 1.7
VCC
3.3 V
Millennium Plus
DiskOnChip
0.1 uF
VSS
IF_CFG
BUSY#
LOCK#
VCCQ
10 nF
BHE#
IRQ
1.8V/3.3V
DiskOnChip Millennium Plus 16/32/64MByte
1-20KOhm
Busy
93-SR-002-03-8L