MD3331-D64-V3 M-Systems Inc., MD3331-D64-V3 Datasheet - Page 47

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

9.2.2 Multiplexed Interface
With a multiplexed interface, DiskOnChip Millennium Plus 16MB requires the signals shown in Figure 19 below.
9.3
9.3.1 Standard Interface
DiskOnChip Millennium Plus uses standard SRAM-like control signals, which should be connected as follows:
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Connecting Signals
Address (A[12:0]) – Connect these signals to the host address bus.
Data (D[15:0]) – Connect these signals to the host data bus.
Write (WE#) and Output Enable (OE#) – Connect these signals to the host WR# and RD# signals,
respectively.
Chip Enable (CE#) – Connect this signal to the memory address decoder.
Chip Identification (ID[0:1]) –Both signals must be connected to VSS if only one DiskOnChip Millennium
Plus is being used. If more than one, refer to Section 9.6 for more information on cascaded configuration.
Power-On Reset In (RSTIN#) – Connect this signal to the host Power-On Reset signal.
Busy (BUSY#) – Connect this signal to an input port. It indicates when the device is ready for first access
after hardware reset.
Interrupt (IRQ#) – Connect this signal to the host interrupt to release the host of this task and improve
performance.
Byte High Enable (BHE#) – This signal definition is compatible with 16 bit platforms that use the
BHE#/BLE# protocol. See Section 9.5.4. This signal is only relevant during the boot phase.
Hardware Lock (LOCK#) – This signal prevents the use of the Write Protect key to disable the protection.
8/16 Bit Configuration (IF_CFG) – This signal is required for configuring the device for 8 or 16-bit access
mode. When negated, the device is configured for 8-bit access mode. When asserted, 16-bit access mode is
operative.
Output Enable
Address/Data
W rite Enable
Chip Enable
Chip ID
AVD#
Reset
0.1 uF
Figure 19: Multiplexed System Interface
ID0
RSTIN#
AD[15:0]
OE#
AVD#
CE#
W E#
Data Sheet, Rev. 1.7
10 nF
Millennium Plus
VCC
3.3 V
DiskOnChip
0.1 uF
VSS
BUSY#
LOCK#
10 nF
VCCQ
1.8V/3.3V
IRQ#
DiskOnChip Millennium Plus 16/32/64MByte
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1-20KOhm
Busy
93-SR-002-03-8L