參數資料
型號： CYNSE70064A-50BGC
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： 通信及網絡
英文描述： Search Engine
中文描述： SPECIALTY TELECOM CIRCUIT, PBGA272
封裝： 27 X 27 MM, 2.33 MM HEIGHT, PLASTIC, BGA-272
文件頁數： 23/127頁
文件大?。?/td> 3275K
代理商： CYNSE70064A-50BGC
CYNSE70064A
Document #: 38-02041 Rev. *E
Page 23 of 127
Cycle 2
: The host ASIC drives the DQ[67:0] with the data to be written to the data or mask array location of the selected device.
The CYNSE70064A writes the data from the DQ[67:0] bus only to the subfield that has the corresponding mask bit set to 1 in
the GMR specified by the index CMD[5:3] supplied in cycle 1.
Cycles 3 to n + 1
: The host ASIC drives the DQ[67:0] with the data to be written to the next data or mask array location
(addressed by the auto-increment ADR field of the WBURREG register) of the selected device.
The CYNSE70064A writes the data on the DQ[67:0] bus only to the subfield that has the corresponding mask bit set to 1 in the
GMR specified by the index CMD[5:3] supplied in cycle 1. The CYNSE70064A drives the EOT signal LOW from cycle 3 to cycle
n; the CYNSE70064A drives the EOT signal HIGH in cycle n + 1 (n is specified in the BLEN field of the WBURREG).
Cycle n + 2
: TheCYNSE70064A drives the EOT signal LOW.
At the termination of cycle n + 2, the CYNSE70064A floats the EOT signal to a three-state operation, and a new instruction can
begin.
Table 10-9. Write Address Format for Data and Mask Array (Burst Write)
DQ[67:26]
DQ[25:21]
DQ[20:19]
DQ[18:15]
Reserved
ID
00: Data array
Reserved
10.5
This subsection describes the following:
68-bit Search on tables configured as ×68 using one device
68-bit Search on tables configured as ×68 using up to eight devices
68-bit Search on tables configured as ×68 using up to 31 devices
136-bit Search on tables configured as ×136 using one device
136-bit Search on tables configured as ×136 using up to eight devices
136-bit Search on tables configured as ×136 using up to 31 devices
272-bit Search on tables configured as ×272 using one device
272-bit Search on tables configured as ×272 using up to eight devices
272-bit Search on tables configured as ×272 using up to 31 devices
Mixed-size searches on tables configured with different widths using an CYNSE70064A.
Search Command
10.6
Figure 10-5
shows the timing diagram for a Search command in the 68-bit-configured table (CFG = 00000000) consisting of
a single device for one set of parameters: TLSZ = 00, HLAT = 000, LRAM = 1, and LDEV = 1. The hardware diagram for this
Search subsystem is shown in
Figure 10-6
.
68-bit Search on Tables Configured as ×68 using a Single CYNSE70064A Device
DQ[14:0]
Do not care
. These 15 bits come from the internal
register (WBURADR), which increments with each
access.
Do not care
. These 15 bits come from the internal
register (WBURADR), which increments with each
access.
Reserved
ID
01: Mask array
Reserved
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相關代理商/技術參數
參數描述
CYNSE70064A-66BG 制造商:Cypress Semiconductor 功能描述:
CYNSE70064A-66BGC 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Search Engine
CYNSE70064A-83BGC 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Search Engine
CYNSE70128 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Network Processing
CYNSE70128-83BGC 制造商:Cypress Semiconductor 功能描述:NETWORK SEARCH ENGINE 388BGA - Trays
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