- 您现在的位置：买卖IC网 > PDF目录67593 > FX980L6 (CML MICROSYSTEMS PLC) SPECIALTY CONSUMER CIRCUIT, PQCC44 PDF资料下载
参数资料
| 型号： | FX980L6 |
| 厂商： | CML MICROSYSTEMS PLC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 6/86页 |
| 文件大小： | 821K |
| 代理商： | FX980L6 |
第1页第2页第3页第4页第5页当前第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页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页
TETRA Baseband Processor
FX980
1997 Consumer Microcircuits Limited
14
D/980/3
Example:
To program the fifth and sixth locations of the Auxiliary SRAM with $0x01AA the
commands would be:
$0x0000
Cmd
; set ConfigCtrl1 all bits Low
; use default conditions
$0x0118
Cmd
; set ConfigCtrl2 bits 7 and 6 Low
; required by default for these
Reserved bits
; set ConfigCtrl2 bit 4 High
; post-increment addresses on a
read operation
; set ConfigCtrl2 bit 3 High
; enable read/write access to the
Auxiliary SRAM
$0xF300
Cmd
; read SramData LSB register
; read fourth memory location
(LSB). Post-increment pointer.
CmdRd
$0xF3xx ; SramData LSB register data returned ; discard this byte
$0x7002
Cmd
; write SramData LSB register
; write $0x02 to fifth memory
location (LSB)
$0x716A
Cmd
; write SramData MSB register
; write $0x6A to sixth memory
location (MSB)
$0xF000
Cmd
; read SramData LSB register
; read fifth memory location (LSB)
CmdRd
$0xF002 ; SramData LSB register data returned ; check this byte is $0x02
$0xF100
Cmd
; read SramData MSB register
; read sixth memory location (MSB)
CmdRd
$0xF16A ; SramData MSB register data returned ; check this byte is $0x6A
$0x0110
Cmd
; set ConfigCtrl2 bit 3 Low
; disable read/write access to the
Auxiliary SRAM
1.5.6.6 Coefficient Memory
The convention for naming filter coefficients is A1 to An, where n is given by (Filter Length + 1)/2, i.e. for the
15-tap filter, n = 8. This arises from the internal architecture of the filters and the fact that they are all “odd”
and symmetrical. Write or read operations beyond this coefficient number will be reflected about the central
coefficient e.g. the tenth read operation from the 15-tap filter would access coefficient location A6.
There is no practical reason to write or read beyond location n, but the user in any case must avoid write
operations at the (Filter Length + 1) location. This location (A0) location must be zero for the filters to operate
correctly. The global reset (N-RESET pin) establishes this condition when taken Low.
1.5.7
Register Description
This section describes in detail each of the registers and access points addressed by the Command Control
Serial Word.
相关PDF资料 |
PDF描述 |
|---|---|
| FXO-HC320-0.7500M | CRYSTAL OSCILLATOR, CLOCK, 0.75 MHz, HCMOS OUTPUT |
| FXO-HC320-180.00M | CRYSTAL OSCILLATOR, CLOCK, 180 MHz, HCMOS OUTPUT |
| FXO-HC325-180.00M | CRYSTAL OSCILLATOR, CLOCK, 180 MHz, HCMOS OUTPUT |
| FXO-HC325R-106.25M | CRYSTAL OSCILLATOR, CLOCK, 106.25 MHz, HCMOS OUTPUT |
| FXO-HC320R-106.25M | CRYSTAL OSCILLATOR, CLOCK, 106.25 MHz, HCMOS OUTPUT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FX981006 | 制造商:Thomas & Betts 功能描述: |
| FX-991ES | 制造商:CASIO 功能描述:CALCULATOR |
| FX-991ES+ | 制造商:CASIO 功能描述:CALCULATOR ((NS)) |
| FX992S | 制造商:CASIO 功能描述:CALCULATOR SCIENTIFIC 制造商:CASIO 功能描述:CALCULATOR, SCIENTIFIC |
| FX996 | 制造商:BACO Controls Inc 功能描述: |
发布紧急采购，3分钟左右您将得到回复。