参数资料
型号: IP-SRAM/QDRII
厂商: Altera
文件页数: 56/68页
文件大小: 0K
描述: IP QDRII SRAM CONTROLLER
标准包装: 1
系列: *
类型: MegaCore
功能: QDRII SRAM 控制器
许可证: 初始许可证
Interfaces & Signals
Table 3–3. Avalon Read Signals (Part 2 of 2)
Signal
avl_datavalid_rd
Width (Bits)
1
Direction
Output
Description
Avalon read data valid—the data is sent concurrent to
the signal.
avl_wait_request_
rd
1
Output
Avalon read w ait—the transaction does not occur on this
cycle.
Table 3–4 shows the QDRII memory signals.
Table 3–4. QDRII Memory Signals
Signal
qdrii_a
qdrii_bwsn
qdrii_cq
qdrii_cqn
qdrii_d
qdrii_k
qdrii_kn
qdrii_q
qdrii_rpsn
Width (Bits)
? 21
? 8
? 9
? 9
?? 72
?? 9
?? 9
?? 72
?? 8
Direction
Output
Output
Input
Input
Output
Output
Output
Input
Output
Description
Address bus.
Byte enable to memory.
Free running clock from memory.
Free running clock from memory.
Data out.
Free running clock to memory.
Free running clock to memory.
Data in from memory.
Read signal to memory. Active lo w
and reset in the inactive state.
qdrii_wpsn
?? 8
Output
Write signal to memory. Active lo w
and reset in the inactive state.
Table 3–5 shows the datapath interface signals.
Table 3–5. Datapath Interface Signals (Part 1 of 2)
Name
clk
control_a_rd
control_a_wr
control_bwsn
control_rpsn
control_wdata
Width
(Bits)
17:0
17:0
3:0
35:0
Direction
Input
Input
Input
Input
Input
Input
Description
Clock.
Read address from the pipeline and resynchronization logic.
Write address from the pipeline and resynchronization logic.
Byte enable from the pipeline and resynchronization logic.
Read from the pipeline and resynchronization logic.
Write data from the pipeline and resynchronization logic.
3–24 MegaCore Version 9.1
Altera Corporation
QDRII SRAM Controller MegaCore Function User Guide
November 2009
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