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参数资料
| 型号： | EPCS4 |
| 厂商： | Altera Corporation |
| 英文描述： | Serial Configuration Devices |
| 中文描述： | 串行配置器件 |
| 文件页数： | 14/32页 |
| 文件大小： | 236K |
| 代理商： | EPCS4 |
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4–14
Configuration Handbook, Volume 2
Core Version a.b.c variable
Altera Corporation
July 2004
Serial Configuration Device Memory Access
available when all the block protect bits are
0
. When any of the block
protect bits are set to one, the relevant area is protected from being
written by write bytes operations or erased by erase sector operations.
The status register can be read at any time, even while a write or erase
cycle is in progress. When one of these cycles is in progress, you can check
the write in progress bit (bit
0
of the status register) before sending a new
operation to the device. The device can also read the status register
continuously, as shown in
Figure 4–9
.
Table 4–9. Block Protection Bits in EPCS4 Devices
Status Register Content
Memory Content
BP2 Bit
BP1 Bit
BP0 Bit
Protected Area
Unprotected Area
0
0
0
None
All eight sectors: 0 to 7
0
0
1
Sector 7
Seven sectors: 0 to 6
0
1
0
Sectors 6 and 7
Six sectors: 0 to 5
0
1
1
Four sectors: 4 to 7
Four sectors: 0 to 3
1
0
0
All sectors
None
1
0
1
All sectors
None
1
1
0
All sectors
None
1
1
1
All sectors
None
Table 4–10. Block Protection Bits in EPCS1
Status Register Content
Memory Content
BP1 Bit
BP0 Bit
Protected Area
Unprotected Area
0
0
None
All four sectors: 0 to 3
0
1
Sector 3
Three sectors: 0 to 2
1
0
Two sectors: 2 and 3
Two sectors: 0 and 1
1
1
All sectors
None
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| EPCS4SI8 | 功能描述:FPGA-配置存储器 IC - Ser. Config Mem Flash 4Mb 40 MHz RoHS:否 制造商:Altera Corporation 存储类型:Flash 存储容量:1.6 Mbit 工作频率:10 MHz 电源电压-最大:5.25 V 电源电压-最小:3 V 电源电流:50 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:PLCC-20 |
| EPCS4SI8N | 功能描述:FPGA-配置存储器 IC - Ser. Config Mem Flash 4Mb 40 MHz RoHS:否 制造商:Altera Corporation 存储类型:Flash 存储容量:1.6 Mbit 工作频率:10 MHz 电源电压-最大:5.25 V 电源电压-最小:3 V 电源电流:50 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:PLCC-20 |
| EPCS4SI8N | 制造商:Altera Corporation 功能描述:SEMICONDUCTOR ((NW)) |
| EPCS64 | 制造商:ALTERA 制造商全称:Altera Corporation 功能描述:Serial Configuration Devices |
| EPCS64SI16N | 功能描述:FPGA-配置存储器 IC - Ser. Config Mem Flash 64Mb 40 MHz RoHS:否 制造商:Altera Corporation 存储类型:Flash 存储容量:1.6 Mbit 工作频率:10 MHz 电源电压-最大:5.25 V 电源电压-最小:3 V 电源电流:50 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:PLCC-20 |
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