参数资料
型号: COREPCIF-OM
厂商: Microsemi SoC
文件页数: 57/156页
文件大小: 0K
描述: IP MODULE COREPCIF
标准包装: 1
系列: *
Burst Transfer with a Slow PCI Master
Burst Transfer with a Slow PCI Master
Figure 6-7 to Figure 6-9 on page 58 show burst transfers with a PCI Master that transfers one word of data every three
clock cycles. The backend in this case is capable of transferring data every clock cycle. The core reads data from the
backend and stores it in the internal FIFO. Figure 6-7 shows seven data words being read from the backend (cycles three
to nine). These words are then transferred on the PCI bus at the rate governed by the PCI Master. The core stores a
maximum of five words internally. By cycle nine, the core has read seven words from the backend and transferred two
words on the PCI bus. It then stops reading data from the backend. When the number of words stored in the core drops
to four, the core starts reading data from the backend again.
Figure 6-8 on page 58 shows the same slow PCI Master reading data from the backend when RD_SYNC = 1. The main
difference here is that the core samples data on the clock edge following the strobe assertion. Since data is transferred a
clock cycle later, the internal FIFO fill level is different than in Figure 6-7 .
In the case of write transfers, the backend logic continuously asserts WR_BE_RDY, indicating it is ready to accept data.
Data is then written to the backend every three clock cycles. The backend address increments after each write completes
cycle
0
1
2
3
4
5
6
7
8
9
10 11
12 13
14 15 16
17 18 19
clk
framen
ad[31:0]
ADDR
0
1
2
3
4
cben[3:0]
par
devseln
irdyn
trdyn
dp_start
dp_done
bar_select[2:0]
rd_cyc
rd_stb_out
rd_stb_in
6
0
0
mem_add[11:0]
000
004 008 00C 010 014 018
01C
020
024
mem_data_in[31:0]
0
1
2
3
4
5
6
7
8
rd_sync
Figure 6-7 · Backend Read Cycle with Slow PCI Master (RD_SYNC = 0)
v4.0
57
相关PDF资料
PDF描述
175101-R2-03.00 CABLE .141 N TYPE PLUG-PLUG 3"
M3CFK-4018J IDC CABLE - MKC40K/MC40G/MCF40K
M3CGK-4018J IDC CABLE - MKC40K/MC40G/MCS40K
M3CEK-4018J IDC CABLE - MKC40K/MC40G/MCE40K
M3AFK-4018J IDC CABLE - MSC40K/MC40G/MCF40K
相关代理商/技术参数
参数描述
COREPCIF-OMFL 功能描述:IP MODULE 制造商:microsemi corporation 系列:- 零件状态:在售 类型:许可证 应用:- 版本:- 许可长度:- 许可 - 用户明细:- 操作系统:- 配套使用产品/相关产品:Microsemi 器件 媒体分发类型:- 标准包装:1
COREPCIF-RM 功能描述:IP MODULE COREPCIF RoHS:否 类别:编程器,开发系统 >> 软件 系列:* 标准包装:1 系列:ISE® 设计套件 类型:订阅 适用于相关产品:Xilinx FPGAs 其它名称:Q4986209T1081384
COREPCIF-RMFL 功能描述:IP MODULE 制造商:microsemi corporation 系列:- 零件状态:在售 类型:许可证 应用:- 版本:- 许可长度:- 许可 - 用户明细:- 操作系统:- 配套使用产品/相关产品:Microsemi 器件 媒体分发类型:- 标准包装:1
COREPCIF-UR 功能描述:HW/SW/OTHER 制造商:microsemi corporation 系列:* 零件状态:在售 标准包装:1
COREPCI-SN 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41