参数资料
型号: IP-RLDRAMII
厂商: Altera
文件页数: 29/62页
文件大小: 0K
描述: IP RLDRAM II CONTROLLER
标准包装: 1
系列: *
类型: MegaCore
功能: RLDRAM II 控制器
许可证: 初始许可证
Functional Description
Figure 2–13. Write Following a Read
clk
Local_Interface
local_write_req
local_read_req
local_addr[]
local_ba[]
local_wdata_req
local_wdata[]
local_dm[]
RLDRAM_II_Interface
rldramii_clk
rldramii_clk_n
rldramii_cs_n
rldramii_we_n
rldramii_ref_n
A
A
B
B
00
01
rldramii_a[]
rldramii_ba[]
A
A
B
B
rldramii_dm[]
rldramii_dq[ ]
11
0 1
00
0 1
11
rldramii_qk[]
rldramii_qvld[]
Reads
When you assert local_read_req , the control logic issues the read
transaction immediately at the memory interface.
In DQS mode the read data, rldramii_dq[] (CIO devices) or
rldramii_q[] (SIO devices), and the QVLD signals,
rldramii_qvld[] , are captured using the delayed rldramii_qk[]
data strobes that have been phase shifted using the dedicated DQS delay
circuitry.
In non-DQS mode the read data, rldramii_dq[] or rldramii_q[] ,
and the QVLD signals, rldramii_qvld[] , are captured using an
external capture clock.
Altera Corporation
November 2009
MegaCore Version 9.1 2–19
RLDRAM II Controller MegaCore Function User Guide
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