RC28F256 Intel Corporation, RC28F256 Datasheet - Page 52
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RC28F256
Manufacturer Part Number
RC28F256
Description
Intel StrataFlash Embedded Memory
Manufacturer
Intel Corporation
Datasheet
1.RC28F256.pdf
(102 pages)
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1-Gbit P30 Family
Table 21.
April 2005
52
Block Locking/
Configuration
Protection
Unlocking
Suspend
Erase
Mode
Write
Command Codes and Definitions (Sheet 2 of 2)
Code
0xD0
0xD0
0xD0
0xD0
0xD0
0xC0
0xE8
0xB0
0x2F
0x10
0x80
0x20
0x60
0x01
0x60
0x03
Alternate Word
Program Setup
Buffered Program
Buffered Program
Confirm
BEFP Setup
BEFP Confirm
Block Erase Setup
Block Erase Confirm
Program or Erase
Suspend
Suspend Resume
Lock Block Setup
Lock Block
Unlock Block
Lock-Down Block
Program Protection
Register Setup
Read Configuration
Register Setup
Read Configuration
Register
Device Mode
Intel StrataFlash
Order Number: 306666, Revision: 001
Equivalent to the Word Program Setup command, 0x40.
This command loads a variable number of words up to the buffer size of 32
words onto the program buffer.
The confirm command is Issued after the data streaming for writing into the
buffer is done. This instructs the WSM to perform the Buffered Program
algorithm, writing the data from the buffer to the flash memory array.
First cycle of a 2-cycle command; initiates Buffered Enhanced Factory
Program mode (BEFP). The CUI then waits for the BEFP Confirm command,
0xD0, that initiates the BEFP algorithm. All other commands are ignored when
BEFP mode begins.
If the previous command was BEFP Setup (0x80), the CUI latches the address
and data, and prepares the device for BEFP mode.
First cycle of a 2-cycle command; prepares the CUI for a block-erase
operation. The WSM performs the erase algorithm on the block addressed by
the Erase Confirm command. If the next command is not the Erase Confirm
(0xD0) command, the CUI sets Status Register bits SR[4] and SR[5], and
places the device in read status register mode.
If the first command was Block Erase Setup (0x20), the CUI latches the
address and data, and the WSM erases the addressed block. During block-
erase operations, the device responds only to Read Status Register and Erase
Suspend commands. CE# or OE# must be toggled to update the Status
Register in asynchronous read. CE# or ADV# must be toggled to update the
Status Register Data for synchronous Non-array reads
This command issued to any device address initiates a suspend of the
currently-executing program or block erase operation. The Status Register
indicates successful suspend operation by setting either SR[2] (program
suspended) or SR[6] (erase suspended), along with SR[7] (ready). The Write
State Machine remains in the suspend mode regardless of control signal states
(except for RST# asserted).
This command issued to any device address resumes the suspended program
or block-erase operation.
First cycle of a 2-cycle command; prepares the CUI for block lock configuration
changes. If the next command is not Block Lock (0x01), Block Unlock (0xD0),
or Block Lock-Down (0x2F), the CUI sets Status Register bits SR[4] and SR[5],
indicating a command sequence error.
If the previous command was Block Lock Setup (0x60), the addressed block is
locked.
If the previous command was Block Lock Setup (0x60), the addressed block is
unlocked. If the addressed block is in a lock-down state, the operation has no
effect.
If the previous command was Block Lock Setup (0x60), the addressed block is
locked down.
First cycle of a 2-cycle command; prepares the device for a Protection Register
or Lock Register program operation. The second cycle latches the register
address and data, and starts the programming algorithm
First cycle of a 2-cycle command; prepares the CUI for device read
configuration. If the Set Read Configuration Register command (0x03) is not
the next command, the CUI sets Status Register bits SR[4] and SR[5],
indicating a command sequence error.
If the previous command was Read Configuration Register Setup (0x60), the
CUI latches the address and writes A[15:0] to the Read Configuration Register.
Following a Configure Read Configuration Register command, subsequent
read operations access array data.
®
Embedded Memory (P30)
Description
Datasheet