RD38F1020C0ZBL0 Intel, RD38F1020C0ZBL0 Datasheet - Page 16

• Manufacturer Part Number: RD38F1020C0ZBL0
• Manufacturer: Intel

Specifications of RD38F1020C0ZBL0

• Operating Supply Voltage (max): 3.3V
• Operating Temperature (max): 85C
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

C3 SCSP Flash Memory
3.3.1
3.4
3.5
Note:
26 Aug 2005
16
Clear Status Register (50h)
The WSM sets status bits 1 through 7 to a 1 value, and clears bits 2, 6 and 7 to a 0 value. However,
WSM cannot clear status bits 1 or 3 through 5 to a 0 value. Because bits 1, 3, 4, and 5 indicate
various error conditions, only the Clear Status Register (50h) command can clear these bits.
If the system software controls resetting these bits, several operations (such as cumulatively
programming several addresses or erasing multiple blocks in sequence) can be performed before
reading the status register to determine whether an error occurred during that series.
CFI Query (98h)
The CFI query mode outputs Common Flash Interface (CFI) data when the flash memory device is
read.
The CFI data structure contains information such as:
Word Program (40h/10h)
Programming uses a two-write sequence.
Programming the memory changes the value of specific bits within an address to 0.
If you attempt to program a 1 value, the memory cell contents do not change and no error occurs.
1. To access this mode, write the CFI Query Command (98h).
2. To return to read array mode, write the Read Array command (FFh).
1. The Program Setup command (40h) is written to the CUI.
2. A second write specifies the address and data to program.
3. The WSM executes a sequence of internally timed events to program desired bits of the
4. The WSM then verifies that the bits are sufficiently programmed.
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Clear the status register before beginning another command or sequence.
A Read Array command must be issued before data can be read from the memory array.
Resetting the flash memory device also clears the status register.
block size
density
command set
electrical specifications
In this mode, read cycles from addresses shown in
retrieve the specified information.
addressed location
Intel
®
Advanced+ Boot Block Flash Memory (C3) SCSP Family
Order Number: 252636, Revision: 004
Appendix B, “CFI Query Structure”
Datasheet