参数资料
| 型号： | COREFIR-RM |
| 厂商： | Microsemi SoC |
| 文件页数： | 44/67页 |
| 文件大小： | 0K |
| 描述： | IP MODULE COREFIR |
| 标准包装： | 1 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页当前第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页
Data Path Bit Width
CLK
DATAI_VALID
READY
busy
busy
busy
DATAI
Valid data
Figure 40 · Data Source Is Always Ready
Output Rate Control
As the output sample rate of the Interpolation filter is higher than the data rate, there might be a need for a
slow downstream device to control the filter throughput. You can do this using the RCLK signal by
deasserting it for a number of clock cycles. The core expects the RCLK signal to be active for a full clock
cycle. If a recipient of the interpolated samples asserts the RCLK every other clock cycle, the sample rate
diminishes with a factor of two. The RCLK active every third clock cycle reduces the output sample speed by
three times, etc. The core automatically adjusts the READY signal for the data source to drop rate as well.
Figure 41 presents the case depicted on Figure 40 but the output sample rate equals one third of the
Figure 40 rate due to lowering the RCLK signal for two clock cycles out of every three. It is seen the READY
signal got slower, too.
CLK
RCLK
DATAI_VALID
READY
DATAI
Valid data
Figure 41 · RCLK Used to Reduce the Output Rate by Three Times
If the downstream device can handle interpolated samples at clock rate, the signal RCLK should be
connected to VCC or left unconnected.
CoreFIR v8.5 Handbook
45
相关PDF资料 |
PDF描述 |
|---|---|
| COREPCIF-RM | IP MODULE COREPCIF |
| 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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| COREFIR-UR | 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreFIR Finite Impulse Response (FIR) Filter Generator |
| COREFIR-XX | 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreFIR Finite Impulse Response (FIR) Filter Generator |
| COREMP7 | 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CoreMP7 |
| COREPCI-AN | 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41 |
| COREPCI-AR | 制造商:ACTEL 制造商全称:Actel Corporation 功能描述:CorePCI v5.41 |
发布紧急采购，3分钟左右您将得到回复。