參數資料
型號: CYNCP80192
英文描述: Network Processing
中文描述: 網絡處理
文件頁數: 25/42頁
文件大?。?/td> 679K
代理商: CYNCP80192
CYNCP80192
Document #: 38-02043 Rev. *B
Page 25 of 42
10.0
ZBT Flowthrough SSRAM Interface Mode
The ADR and control signals (R/W_L, BW_L[7:0], CE_L, CE2, CE2_L) are sampled on a CLK edge. For Write cycles, the data
is sampled one cycle later; for Read cycles, the data is available to the processor one cycle later. Both Write- and Read-cycle
latency is one cycle, and there is no gap required between Read and Write operation. Every cycle is available for the network
processor(s) for full utilization of the bus bandwidth. See
Figure 10-1
.
Note
. BWE_L is not used in this mode and should be tied
inactive.
CLK
ADR[9:0]
BW_L[7:0]
DATA[63:0]
CE_L
CE_2
R/W_L
STRB
CPID[7:0]
1
2
3
4
5
6
7
A1
A2
A3
A4
A5
D1
Q2
D3
Q4
Q5
CPID
Write
Read
Write
Write
Read
CE2_L
Figure 10-1. ZBT Flowthrough SSRAM Interface (Mode 001)
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