MD3331-D32-V3Q18-P M-Systems, MD3331-D32-V3Q18-P Datasheet - Page 33

• Manufacturer Part Number: MD3331-D32-V3Q18-P
• Description: Mobile DiskOnChip Plus 16/32MByte 1.8V I/O Flash Disk, Protection and Security-Enabling Features
• Manufacturer: M-Systems

7.6
Description:
Address (hex):
Type:
Reset Value:
33
Bit No.
Bit 7
0-1
5-7
2
3
4
DiskOnChip Control Register/Control Confirmation Register
Mode. These bits select the mode of operation, as follows:
00: Reset
01: Normal
10: Deep Power-Down
MDWREN (Mode Write Enable). This bit must be set to 1 before changing the mode of operation.
BDET (Boot Detect). This bit is set whenever the device has entered Reset mode as a result of the
Boot Detector triggering. It is cleared by writing a 1 to this bit.
RST_LAT (Reset Latch). This bit is set whenever the device has entered the Reset mode as a
result of the RSTIN# input signal being asserted or the internal voltage detector triggering. It is
cleared by writing a 1 to this bit.
Reserved for future use
RFU_0
These two registers are identical and contain information on the operation mode of Mobile
DiskOnChip Plus. After writing the required value to the DiskOnChip Control register, the
complement of that data byte must also be written to the Control Confirmation register. The two
writes cycles must not be separated by any other read or write cycles to the Mobile DiskOnChip
Plus memory space, except for reads from the Programmable Boot Block space.
1006/1076
Read/Write
10H
Bit 6
Bit 5
RST_LAT
Data Sheet, Rev. 1.7
Bit 4
Description
BDET
Bit 3
MDWREN
Mobile DiskOnChip Plus 16/32MByte 1.8V I/O
Bit 2
Bit 1
Mode[1:0]
95-SR-000-10-8L
Bit 0