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參數(shù)資料
| 型號： | INTEL82802AB |
| 廠商： | Intel Corp. |
| 英文描述： | Firmware Hub (FWH) |
| 中文描述： | 固件集線器（固件樞紐） |
| 文件頁數(shù)： | 21/53頁 |
| 文件大小： | 471K |
| 代理商： | INTEL82802AB |
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Intel
82802AB/AC Firmware Hub
R
Datasheet
21
4.1.
Read Array Command
Upon initial device power-up and after exit from reset, the device defaults to the read array mode. This
operation can also be initiated by writing the Read Array command. The device remains available for
array reads until another command is written. Once the internal write state machine (WSM) has started a
block erase or program, the device will not recognize the Read Array command until the operation is
completed, unless the operation is suspended via an Erase Suspend or Program Suspend command. The
Read Array command functions independently of the V
PP
voltage.
4.2.
Read Identifier Codes Command
The identifier code operation is initiated by writing the Read Identifier Codes command. Following the
write of the command, the device will read back the (manufacturer and device) ID data from the
addresses shown in the following table. To terminate the read identifier code operation, write another
valid command to the Intel FWH. The Read Identifier Codes command functions independently of the
V
PP
voltage.
Table 4.
Identifier Codes
Code
Address
Data
Manufacturer code
000000
89
Device code
4 Mbit
000001
AD
Device code
8 Mbit
000001
AC
4.3.
Read Status Register Command
The status register may be read to determine when a block erase or program completes, and whether the
operation completed successfully. The status register may be read at any time by writing the Read Status
Register command. After writing this command, all subsequent read operations will return data from the
status register until another valid command is written. The Read Status Register command functions
independently of the V
PP
voltage.
4.4.
Clear Status Register Command
Error flags in the status register can only be set to 1s by the WSM and can only be reset by the Clear
Status Register command. These bits indicate various conditions that may cause failure. The Clear Status
Register command functions independently of the applied V
PP
voltage.
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