欢迎访问ic37.com |
会员登录 免费注册
发布采购

CMX608 参数 Datasheet PDF下载

CMX608图片预览
型号: CMX608
PDF下载: 下载PDF文件 查看货源
内容描述: [Integrated Input and Output Channel Filters]
分类和应用:
文件页数/大小: 70 页 / 3411 K
品牌: CMLMICRO [ CML MICROCIRCUITS ]
 浏览型号CMX608的Datasheet PDF文件第52页浏览型号CMX608的Datasheet PDF文件第53页浏览型号CMX608的Datasheet PDF文件第54页浏览型号CMX608的Datasheet PDF文件第55页浏览型号CMX608的Datasheet PDF文件第57页浏览型号CMX608的Datasheet PDF文件第58页浏览型号CMX608的Datasheet PDF文件第59页浏览型号CMX608的Datasheet PDF文件第60页  
RALCWI Vocoder  
CMX608/CMX618/CMX638  
Read the SVCACK register ($2E) and check that bit 0 is set to '1', which indicates that the device  
has accepted the control command. If this bit is not set to '1', it indicates that a control command  
was sent before a valid configuration was sent.  
7. Wait for encoded frames  
Wait for a C-BUS interrupt, or poll the STATUS register ($40) until bit 0 is set to '1'.  
Read 27 bytes from the ENCFRAME register ($30).  
Repeat this step until no more encoded voice frames are required.  
Go to step 8 or step 11.  
Decoding:  
8. Start decoder running (stop encoder if it was running)  
Write $0001 into the VCTRL register ($11).  
This tells the Vocoder to disable the encoder and stop collecting samples if previously encoding. It  
will also enable the decoder.  
9. Wait for control command to complete  
Wait for a C-BUS interrupt, or poll the STATUS register ($40) until bit 15 is set to '1'.  
Read the SVCACK register ($2E) and check that bit 0 is set to '1', which indicates that the device  
has accepted the control command. If this bit is not set to '1', it indicates that a control command  
was sent before a valid configuration was sent.  
10. Supply frames for decoding  
Write a 27 byte frame into the DECFRAME register ($10).  
Wait for 60 milliseconds, and repeat.  
Go to step 5 or step 11.  
Powersaving:  
11. Stop encoder and decoder  
Write $0000 into the VCTRL register ($11).  
12. Stop the clock  
Pull the ENABXTAL pin (pin 34) to '0'.  
(Note that additional power can be saved by powering down the BIAS pin. However, it is necessary  
to wait for 100ms for the BIAS pin to reach its steady-state value of AV / 2 after the bias chain  
DD  
has been powered-up again, which is done by setting POWERSAVE register ($09) bit 0 to '1').  
Reactivation:  
13. Start the clock  
Pull the ENABXTAL pin (pin 34) to '1'.  
14. Wait for device to be ready  
The host must wait for at least 27ms before starting the encoder or decoder.  
15. Start encoding or decoding  
Jump to step 5 or step 8.  
2014 CML Microsystems Plc  
56  
D/608_18_38/11  
 复制成功!