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参数资料
| 型号： | HSP50214BVIZ |
| 厂商： | Intersil |
| 文件页数： | 40/62页 |
| 文件大小： | 0K |
| 描述： | IC DOWNCONVERTER 14BIT 120-MQFP |
| 标准包装： | 24 |
| 功能： | 降频器 |
| RF 型： | AMPS，CDMA，GSM，TDMA |
| 封装/外壳： | 120-BQFP |
| 包装： | 托盘 |
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HSP50214B
FIFO Operation Via 8-Bit μ Processor
Interface
The Buffer RAM Output may also be accessed via the 8-bit
6
7
microprocessor interface C(7:0). Figure 41 shows the
conceptual configuration of the 8-bit μ processor interface.
5
4
3
2
0
1
FIFO
DEPTH
WRITE
Control Word 20, Bit 24 must be set to 0 in order to obtain
Buffer RAM data to this output. The Microprocessor Read
Section describes how to read the data from each sample
out of the C(7:0) interface.
Recall that INTRRP stays low for 8 PROCCLK cycles. The
FIFO can be read before the INTRRP signal goes low; the
FIGURE 40A. FIFO DEPTH IS (WRITE - READ )
WRITE
number of samples in the FIFO must be monitored by the user.
The timing relationship of the INTRRP to the snapshot data is
shown in Figure 42.
The read pointer of the FIFO is incremented when Control
Word 23 is written to. The data cannot be read from the
next sample until 4 PROCCLKs after the Buffer RAM
5
4
6
3
7
2
0
1
READ
pointer has been incremented. Control Word 22 is used to
reset the Read and Write pointers of the Buffer RAM output
to the first sample to 000 and 007 for write and read
respectively.
FIGURE 40B. FIFO FULL IS WHEN (WRITE - READ) = 7
READ
5
4
6
3
7
2
0
1
WRITE
FIGURE 40C. FIFO EMPTY IS WHEN (WRITE - READ) = 1
READ
5
4
6
7
0
1
WRITE
3
2
READY
FIGURE 40D. FIFO READY IS WHEN (WRITE - READ) > DEPTH
FIGURE 40.
40
FN4450.4
May 1, 2007
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| HSP50415VIZ | IC MODULATOR PROGRAMABLE 100MQFP |
| HSSLS-CALBL-013 | HEATSINK 48W SPOT OSRAM PREVALED |
| HSSLS-CALCL-005 | HEATSINK 21W SPOT PHILIPS SLM |
| HSSLS-CALCL-013 | HEATSINK 48W DOWNLIGHT 140 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HSP50214VC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HSP50214VI | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HSP50215 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:DSP Modulator Evaluation Board |
| HSP50215EVAL | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:DSP Modulator Evaluation Board |
| HSP50215VC | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Digital UpConverter |
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