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參數(shù)資料
| 型號： | DSM2180F3V15T6 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| 中文描述： | 帝斯曼（數(shù)字信號處理器系統(tǒng)內(nèi)存）模擬器件公司的ADSP - 218X系列（5V電源） |
| 文件頁數(shù)： | 24/63頁 |
| 文件大?。?/td> | 809K |
| 代理商： | DSM2180F3V15T6 |
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DSM2180F3
24/63
Flash memory sector may be suspended, in order
to read data from another Flash memory sector,
and then resumed.
The address provided with the initial Flash Sector
Erase command sequence (Table 5) must select
the first desired sector (FS0 - FS7) to erase. Sub-
sequent sector erase commands that are append-
ed on within the time-out period must be
addressed to other desired segments (FS0 - FS7).
Suspend Sector Erase.
When a Sector Erase
cycle is in progress, the Suspend Sector Erase in-
struction sequence can be used to suspend the
cycle by writing 0B0h to any address when an ap-
propriate Sector Select (FS0-FS7) is selected
(See Table 5). This allows reading of data from an-
other Flash memory sector after the Erase cycle
has been suspended. Suspend Sector Erase is
accepted only during an Erase cycle and defaults
to Read mode. A Suspend Sector Erase instruc-
tion sequence executed during an Erase time-out
period, in addition to suspending the Erase cycle,
terminates the time out period.
The Toggle Flag (DQ6) bit stops toggling when the
device internal logic is suspended. The status of
this bit must be monitored at an address within the
Flash memory sector being erased. The Toggle
Flag (DQ6) bit stops toggling between 0.1 μs and
15 μs after the Suspend Sector Erase instruction
sequence has been executed. The device is then
automatically set to Read mode.
If an Suspend Sector Erase instruction sequence
was executed, the following rules apply:
– Attempting to read from a Flash memory sector
that was being erased outputs invalid data.
– Reading from a Flash memory sector that was
not
being erased is valid.
– The Flash memory
cannot
be programmed, and
only responds to Resume Sector Erase and Re-
set Flash instruction sequences (Read is an op-
eration and is allowed).
– If a Reset Flash instruction sequence is re-
ceived, data in the Flash memory sector that
was being erased is invalid.
Resume Sector Erase.
If a Suspend Sector
Erase instruction sequence was previously exe-
cuted, the erase cycle may be resumed with this
instruction sequence. The Resume Sector Erase
instruction sequence consists of writing 030h to
any address while an appropriate Sector Select
(FS0-FS7) is active. (See Table 5.)
Flash Memory Sector Protect.
Each Flash memory sector can be separately pro-
tected against Program and Erase cycles. Sector
Protection provides additional data security be-
cause it disables all Program or Erase cycles. This
mode can be activated through the JTAG Port or a
Device Programmer. Sector protection can be se-
lected for each sector using PSDsoft Express.
This automatically protects selected sectors when
the device is programmed through the JTAG Port
or a Device Programmer. Flash memory sectors
can be unprotected to allow updating of their con-
tents using the JTAG Port or a Device Program-
mer. The DSP can read (but cannot change) the
sector protection bits.
Any attempt to program or erase a protected Flash
memory sector is ignored by the device. The Verify
operation results in a read of the protected data.
This allows a guarantee of the retention of the Pro-
tection status.
The sector protection status can be read by the
DSP through the Flash memory protection regis-
ters (in the
csiop
block) as defined in Table 7.
Table 7. Sector Protection/Security Bit Definition – Flash Protection Register
Note: 1. Bit Definitions:
Sec<i>_Prot
1 = Flash memory sector <i> is write protected.
Sec<i>_Prot
0 = Flash memory sector <i> is not write protected.
Table 8. Security Bit Definition
Note: 1. Bit Definitions:
1 = Security Bit in device has been set.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Sec7_Prot
Sec6_Prot
Sec5_Prot
Sec4_Prot
Sec3_Prot
Sec2_Prot
Sec1_Prot
Sec0_Prot
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Security_Bit
not used
not used
not used
not used
not used
not used
not used
相關(guān)PDF資料 |
PDF描述 |
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| DSM2180F3V90K6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2180F3V90T6 | DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (5V Supply) |
| DSM2190F4 | 16-bit fixed point DSP with Flash |
| DSM2190F4V | 16-bit fixed point DSP with Flash |
| DSM2190F4V-15K6 | 16-bit fixed point DSP with Flash |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DSM2180F3V-15T6 | 功能描述:SPLD - 簡單可編程邏輯器件 5.0V 8M 150ns RoHS:否 制造商:Texas Instruments 邏輯系列:TICPAL22V10Z 大電池數(shù)量:10 最大工作頻率:66 MHz 延遲時間:25 ns 工作電源電壓:4.75 V to 5.25 V 電源電流:100 uA 最大工作溫度:+ 75 C 最小工作溫度:0 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:DIP-24 |
| DSM2180F3V90K6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (3.3V Supply) |
| DSM2180F3V-90K6 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| DSM2180F3V90T6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) For Analog Devices ADSP-218X Family (3.3V Supply) |
| DSM2180F3V-90T6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply) |
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