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參數(shù)資料
| 型號(hào)： | ATF1508RE-7AU100 |
| 廠商： | Atmel |
| 文件頁數(shù)： | 42/54頁 |
| 文件大小： | 0K |
| 描述： | IC CPLD EE 128MC 5NS 100-TQFP |
| 標(biāo)準(zhǔn)包裝： | 90 |
| 系列： | ATF15xx |
| 可編程類型： | 系統(tǒng)內(nèi)可編程（最少 10,000 次編程/擦除循環(huán)） |
| 最大延遲時(shí)間 tpd(1)： | 7.5ns |
| 電壓電源 - 內(nèi)部： | 3 V ~ 3.6 V |
| 宏單元數(shù)： | 128 |
| 輸入/輸出數(shù)： | 80 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-TQFP |
| 供應(yīng)商設(shè)備封裝： | 100-TQFP（14x14） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 608 (CN2011-ZH PDF) |
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Troubleshooting
7-6
Atmel ATF15xx Family: ISP Devices User Guide
programming a 5V device at 3V, or vice versa, is not recommended. Either combination
could cause programming problems if you have a mixed-voltage device chain file.
If you still must program a mixed-voltage device chain, there is an override option avail-
able that will disable this error.
This is a 3V system with 5V devices
This error occurs if you have a 3V supply on your target system but are using 5V
device(s) on your board. If the Atmel-ISP software detects a 3V supply on the JTAG
header and a 5V device ID is read out from at least one device in your hardware chain,
then it will generate this error.
You can prevent this error by either editing your chain file accordingly to select 5V
device types and/or removing the 5V devices from your board and replacing them with
3V devices.
If you still must program 5V devices with a 3V supply, there is an override option to dis-
able this error.
This is a 5V system with 3V devices
This error occurs if you have a 5V supply on your target system but are using 3V
device(s) on your board. The Atmel-ISP software detects the supply voltage on your
board’s JTAG 10-pin header and reads the IDCODE of the Atmel device(s) in your hard-
ware chain. If it detects a 5V supply on the JTAG header and a 3V device ID is read out
from at least one device in your hardware chain, then it will generate this error.
You can prevent this error by either editing your chain file accordingly to select 5V
device types and/or removing the 3V devices from your board and replacing them with
5V devices.
If you still must program 3V devices with a 5V supply, there is an override option to dis-
able this error.
7.1.2
Warning Messages
Chain File already exists
You are attempting to overwrite an existing chain file. This warning occurs when you are
using the Chain File Save/Save As command. If you select Yes on this warning mes-
sage, the chain file will be overwritten; otherwise, the command will be aborted.
Chain File Changed
This warning occurs when you exit the ISP software without saving your chain file. It will
also occur if you edit your chain file and exit the software without saving it. If you select
Yes, the ISP software will prompt you for a file name to save the chain file. Otherwise, its
contents will be lost.
Atmel Devices need the IDCODE box checked
The IDCODE box is a JTAG convention that indicates whether a JTAG device has a
32-bit Manufacturer ID register between its TDI and TDO pins that contains the device
ID. All Atmel devices have this register.
Some devices by other vendors (such as TI Boundary Scan Logic Chips) don’t have a
manufacturer IDCODE register. So the 1-bit Bypass register appears between TDI and
TDO by default. If these devices are in your JTAG HDWR chain, then IDCODE box for
them must not be checked.
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