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参数资料
| 型号： | RC28F160C3BD70 |
| 厂商： | INTEL CORP |
| 元件分类： | PROM |
| 英文描述： | 1M X 16 FLASH 3V PROM, 70 ns, PBGA64 |
| 封装： | BGA-64 |
| 文件页数： | 42/72页 |
| 文件大小： | 1083K |
| 代理商： | RC28F160C3BD70 |
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Intel Advanced+ Boot Block Flash Memory (C3)
Datasheet
Intel Advanced+ Boot Block Flash Memory (C3)
May 2005
Order Number: 290645, Revision: 023
47
Table 23.
Command Codes and Descriptions
Code
(HEX)
Device Mode
Command Description
FF
Read Array
This command places the device in read-array mode, which outputs array data on the data pins.
40
Program Set-Up
This is a two-cycle command. The first cycle prepares the CUI for a program operation. The
second cycle latches addresses and data information and initiates the WSM to execute the
Program algorithm. The flash outputs Status Register data when CE# or OE# is toggled. A Read
Array command is required after programming to read array data. See Section 10.2, “Program
20
Erase Set-Up
This is a two-cycle command. It prepares the CUI for the Erase Confirm command. If the next
command is not an Erase Confirm command, then the CUI will (a) set both SR.4 and SR.5 to “1,”
(b) place the device into the read-Status Register mode, and (c) wait for another command. See
D0
Erase Confirm
Program/Erase
Resume
Unlock Block
If the previous command was an Erase Set-Up command, then the CUI will close the address and
data latches and begin erasing the block indicated on the address pins. During program/erase, the
device will respond only to the Read Status Register, Program Suspend and Erase Suspend
commands, and will output Status Register data when CE# or OE# is toggled.
If a Program or Erase operation was previously suspended, this command will resume that
operation.
If the previous command was Block Unlock Set-Up, the CUI will latch the address and unlock the
block indicated on the address pins. If the block had been previously set to Lock-Down, this
operation will have no effect. (See Section 11.1)
B0
Program Suspend
Erase Suspend
Issuing this command will begin to suspend the currently executing Program/Erase operation. The
Status Register will indicate when the operation has been successfully suspended by setting either
the program-suspend SR[2] or erase-suspend SR[6] and the WSM status bit SR[7] to a “1”
(ready). The WSM will continue to idle in the SUSPEND state, regardless of the state of all input-
control pins except RP#, which will immediately shut down the WSM and the remainder of the chip
if RP# is driven to VIL. See Sections 3.2.5.1 and 3.2.6.1.
70
Read Status
Register
This command places the device into read-Status Register mode. Reading the device will output
the contents of the Status Register, regardless of the address presented to the device. The device
automatically enters this mode after a Program or Erase operation has been initiated. See Section
50
Clear Status
Register
The WSM can set the block-lock status SR[1], VPP Status SR[3], program status SR[4], and erase-
status SR[5] bits in the Status Register to “1,” but it cannot clear them to “0.” Issuing this command
clears those bits to “0.”
90
Read Identifier
This command puts the device into the read-identifier mode so that reading the device will output
the manufacturer/device codes or block-lock status. See Section 10.1.2, “Read Identifier” on
60
Block Lock,
Block Unlock,
Block Lock-Down
Set-Up
This command prepares the CUI for block-locking changes. If the next command is not Block
Unlock, Block Lock, or Block Lock-Down, then the CUI will set both the program and erase-Status
Register bits to indicate a command-sequence error. See Section 11.0, “Security Modes” on
01
Lock-Block
If the previous command was Lock Set-Up, the CUI will latch the address and lock the block
indicated on the address pins. (See Section 11.1)
2F
Lock-Down
If the previous command was a Lock-Down Set-Up command, the CUI will latch the address and
lock-down the block indicated on the address pins. (See Section 11.1)
98
CFI Query
This command puts the device into the CFI-Query mode so that reading the device will output
Common Flash Interface information. See Section 10.1.3 and Appendix C, “Common Flash
C0
Protection
Program
Set-Up
This is a two-cycle command. The first cycle prepares the CUI for a program operation to the
protection register. The second cycle latches addresses and data information and initiates the
WSM to execute the Protection Program algorithm to the protection register. The flash outputs
Status Register data when CE# or OE# is toggled. A Read Array command is required after
programming to read array data. See Section 11.5.
10
Alt. Prog Set-Up
Operates the same as Program Set-up command. (See 0x40/Program Set-Up)
00
Invalid/
Reserved
Unassigned commands should not be used. Intel reserves the right to redefine these codes for
future functions.
Note:
See Appendix A, “Write State Machine States” for mode transition information.
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