收藏本站
Single-Cycle Read and Write
cycle
0
1
2
3
4
5
6
7
clk
cben[3:0]
ad[31:0]
framen
par
devseln
irdyn
trdyn
dp_start
dp_done
bar_select[2:0]
rd_cyc
rd_stb_out
rd_stb_in
6
ADDR
0
0
0
mem_add[15:0]
0000
0004
0008
000C
mem_data_in[31:0]
0
1
2
3
rd_sync
Figure 6-2 · Backend Read Cycle (RD_SYNC = 1)
Table 6-2 · Backend Initial Access Time Limits—
Delay Allowed from DP_START to RD_STB_IN or WR_BE_RDY (clock cycles)
Read
Family
RDSYNC = 0 RDSYNC = 1
Write
ProASIC
ProASIC3/E
PLUS
Axcelerator
RTAX-S
RTSX-S
SX-A
11
11
11
11
10
10
10
10
10
10
9
9
13
13
13
13
13
13
For write cycles, the backend indicates that it is ready to accept data by asserting WR_BE_RDY. The core then
indicates that it is ready to accept data from the PCI bus by asserting TRDYN. When the core receives data from the
PCI bus, it asserts the WR_BE_NOW strobes at the same time that the address and data are valid. For 32-bit PCI
transfers, four WR_BE_NOW signals are provided and used to validate each byte. Thus, if the PCI Master performs a
byte write, only one of the four write strobes will be active when the write occurs.
v4.0
53
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
COREU1LL-AR IP MODULE COREU1LL
COREU1PHY-AR IP MODULE COREU1PHY
CORR-8BIT-XM-UT2 SITE LICENSE IP CORRELATOR XP
CP2-GSA-L CONN SHIELD LOWER TYPE A 22
CP2-HSA110-1 CONN SHROUD CPCI 2MM TYPE A 22
CP2-HSC055-4 CONN SHROUD CPCI 2MM TYPE C 11
CP2-K3567-SR-F COMPACT PCI - MISC
CP2105EK KIT EVAL FOR CP2105
相关代理商/技术参数
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
COREPCI-SR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPCI-UR 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPCI-XX 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41
COREPRO LEDBULB 10.5-60W B 制造商:Philips Lumileds 功能描述:
COREPRO LEDBULB 10.5-60W E 制造商:Philips Lumileds 功能描述: