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參數(shù)資料
| 型號： | EPC1 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Configuration Devices for SRAM-Based LUT Devices |
| 中文描述： | 配置SRAM器件基于LUT的器件 |
| 文件頁數(shù)： | 7/28頁 |
| 文件大小： | 380K |
| 代理商： | EPC1 |
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Altera Corporation
7
Configuration Devices for ACEX, APEX, FLEX & Mercury Devices Data Sheet
Device
Configuration
The control signals for configuration devices
—
nCS
,
OE
, and
DCLK
—
interface directly with ACEX, APEX, FLEX, and Mercury device control
signals. All ACEX, APEX, FLEX, and Mercury devices can be configured
by a configuration device without requiring an external intelligent
controller.
The configuration device
’
s
OE
and
nCS
pins control the tri-state buffer on
the
DATA
output pin, and enable the address counter (and the oscillator in
EPC2, EPC1, and EPC1441 devices). When
OE
is driven low, the
configuration device resets the address counter and tri-states its
DATA
pin.
The
nCS
pin controls the output of the configuration device. If
nCS
is held
high after the
OE
reset pulse, the counter is disabled and the
DATA
output
pin is tri-stated. When
nCS
is driven low, the counter and
DATA
output pin
are enabled. When
OE
is driven low again, the address counter is reset and
the
DATA
output pin is tri-stated, regardless of the state of
nCS
.
1
The EPC2, EPC1, and EPC1441 devices determine the operation
mode and whether the ACEX 1K, APEX 20K, FLEX 10K,
FLEX 8000, FLEX 6000, or Mercury protocols should be used
when
OE
is driven high.
When the configuration device has driven out all of its data and has
driven
nCASC
low, the device tri-states the
DATA
pin to avoid contention
with other configuration devices.
The EPC2 device allows the user to initiate configuration of the ACEX,
APEX, FLEX, or Mercury device via an additional pin,
nINIT_CONF
, that
can be tied to the
nCONFIG
pin of the ACEX, APEX, FLEX, or Mercury
device(s) to be configured. A JTAG instruction causes the EPC2 device to
drive
nINIT_CONF
low, which in turn pulls
nCONFIG
low. The EPC2
device then drives
nINIT_CONF
high to start configuration. When the
JTAG state machine exits this state,
nINIT_CONF
releases
nCONFIG
and
configuration is initiated.
1
An EPC2 device can be programmed with a POF generated for
an EPC1 or EPC1441 device, however, an EPC2 device cannot
configure FLEX 6000 or FLEX 8000 devices. An EPC1 device can
be programmed using a POF
generated for an EPC1441 device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EPC1064 | Configuration Devices for SRAM-Based LUT Devices |
| EPC1064V | Configuration Devices for SRAM-Based LUT Devices |
| EPC1213 | Configuration Devices for SRAM-Based LUT Devices |
| EPC1441 | Configuration Devices for SRAM-Based LUT Devices |
| EPC1064 | Configuration Devices for ACEX, APEX, FLEX & Mercury Devices |
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| EPC1000P | 制造商:PCA 制造商全稱:PCA ELECTRONICS INC. 功能描述:Ethernet DC/DC Converter |
| EPC1000PA1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC |
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