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參數(shù)資料
| 型號： | lpm-shiftreg |
| 廠商： | Altera Corporation |
| 英文描述： | Parameteruzed Shift Register(參數(shù)確定的移位寄存器) |
| 中文描述： | Parameteruzed移位寄存器（參數(shù)確定的移位寄存器） |
| 文件頁數(shù)： | 35/48頁 |
| 文件大?。?/td> | 293K |
| 代理商： | LPM-SHIFTREG |
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30
Altera Corporation
Storage Functions
Parameters
Name
Required
Value
Description
LPM_ADDRESS_CONTROL
No
"REGISTERED"
"UNREGISTERED"
"<filename>"
Controls whether the
address[]
and
we
ports are
registered. The default value is
"REGISTERED"
.
Name of the Memory Initialization File (
.mif
) or
Hexadecimal File (
.hex
) containing RAM initialization
data ("<filename>"). If omitted, contents default to all 0s.
Controls whether the
data[]
port is registered. The
default value is
"REGISTERED"
.
Number of words stored in memory. In general, this value
should be (but is not required to be):
2
LPM_WIDTHAD
– 1
<
LPM_NUMWORDS
≤
2
LPM_WIDTHAD
. The
default value is 2
LPM_WIDTHAD
.
Controls whether the
q[]
and internal
eq
ports are
registered. The default value is
"REGISTERED"
.
Width of the
data[]
and
q[]
ports.
Width of the
address[]
port.
LPM_WIDTHAD
should be
(but is not required to be): log
2
(
LPM_NUMWORDS
). If
LPM_WIDTHAD
is too small, some memory locations will
not be addressable. If
LPM_WIDTHAD
is too large, the
addresses that are too high will return undefined logic
levels.
LPM_FILE
No
LPM_INDATA
No
"REGISTERED"
"UNREGISTERED"
Integer > 0
LPM_NUMWORDS
No
LPM_OUTDATA
No
"REGISTERED"
"UNREGISTERED"
Integer > 0
Integer > 0
LPM_WIDTH
Yes
Yes
LPM_WIDTHAD
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