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參數(shù)資料
| 型號(hào)： | ATF1502BE-5AX44 |
| 廠商： | Atmel |
| 文件頁數(shù)： | 24/24頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CPLD 64MC 1.8V 44-TQFP |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 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)： | 7.0ns |
| 電壓電源 - 內(nèi)部： | 1.7 V ~ 1.9 V |
| 宏單元數(shù)： | 32 |
| 輸入/輸出數(shù)： | 32 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-TQFP |
| 供應(yīng)商設(shè)備封裝： | 44-TQFP（10x10） |
| 包裝： | 托盤 |
| 配用： | ATF15XX-DK3-ND - KIT DEV FOR ATF15XX CPLD'S |
9
3492A–PLD–12/05
ATF1502BE
5.2
On-the-Fly – OTF
In this mode, the CPLD design pattern stored in the internal configuration memory can be modi-
fied while the previous design pattern is operating with minimal disturbance to the operation of
the current design. The new configuration will take affect after the OTF programming process is
completed and the OTF mode is exited.
The configuration data for any design is stored in the internal configuration memory. Once the
configuration data is transferred to the internal static registers of the CPLD, the CPLD operates
with the design pattern and the configuration memory is free to be re-loaded with a new set of
configuration data. The design pattern due to the new configuration content is activated through
an initialization cycle that occurs on exiting the OTF mode or after the next power up sequence.
Figure 5-2 shows the electrical interface for configuration of the ATF1502BE device in the OTF
mode. The processor is the controlling device that communicates with the CPLD and uses con-
figuration data stored in the external memory to configure the CPLD.
Figure 5-2.
Configuration of ATF1502BE Device Using a Processor and Memory
5.3
Direct Reconfiguration Access – DRA
This reconfiguration mode allows the user to directly modify the internal static registers of the
CPLD without affecting the configuration data stored in the embedded memory. It is more useful
in cases where immediate and temporary context change in the function of the hardware is
desired.
The CPLD embedded configuration memory does not change when a new set of configuration
data is passed to the chip using the DRA mode. Instead, the internal static registers of the CPLD
are directly written with the data entering the chip via the JTAG port. In other words, it's a tempo-
rary change in the function performed by the CPLD since a power sequence results in the device
being configured again by the data stored in the embedded memory.
5.4
ISP Programming Protection
The ATF1502BE has a special feature that locks the device and prevents the inputs and I/O
from driving if the programming process is interrupted for any reason. The inputs and I/O default
to high-Z state during such a condition.
TCK
ATF1502BE
CPLD Device
Processor
Memory
Address
Data
Serial Data
TDI
TMS
TDO
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ATF1502BE-7AU44 | 功能描述:CPLD - 復(fù)雜可編程邏輯器件 32 MC CPLD 1.8V ISP RoHS:否 制造商:Lattice 系列: 存儲(chǔ)類型:EEPROM 大電池?cái)?shù)量:128 最大工作頻率:333 MHz 延遲時(shí)間:2.7 ns 可編程輸入/輸出端數(shù)量:64 工作電源電壓:3.3 V 最大工作溫度:+ 90 C 最小工作溫度:0 C 封裝 / 箱體:TQFP-100 |
| ATF1502SE | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Family Datasheet |
| ATF1502SE(L) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ATF1502/04/08/16SE(L) Preliminary [Updated 9/02. 69 Pages] Second Generation Industry Compatible 5V Logic Doubling CPLDs 32-512 Macrocells. standard & low power w/ISP |
| ATF1502SE-10 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Family Datasheet |
| ATF1502SE-5 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Family Datasheet |
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