參數(shù)資料
型號： PCF5083
廠商： NXP Semiconductors N.V.
英文描述： STEEL COVER
中文描述： GSM信號處理IC
文件頁數(shù)： 67/136頁
文件大小： 602K
代理商： PCF5083
1996 Oct 29
67
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
CM_convert_TCHFS_data
This routine is used for the TCH/FS loop-back. It converts the output data of
CM_decoder_TCHFS into a format which is required for
CM_encoder_TCHS.
If bfi_sig_flag is set to logic 1, then the decoded speech parameters are set
to zero if a bad frame has been detected.
CM_decoder_CCH
7
bfi_sig_flag
Channel decoder for control channels. In accordance with
“GSM Rec. 05.03”this procedure can be used for the following channels:
BCCH: Broadcast Control Channel
PCH: Paging Channel
SACCH: Slow Associated Control Channel
AGCH: Access Grant Channel
SDCCH: Stand-alone Dedicated Control Channel.
The four bursts containing CCH information which are stored in
CCH_CMI_BUFF are decoded
rxqual_ber reflects the estimated bit error rate at the input of the channel
decoder (hard decision assumed) multiplied by 4096.
bfi_cch bad frame indication:
bfi_cch = 0; the decoded CCH message is OK
bfi_cch = 1; a parity error has been detected
bfi_cch = 2; a bad metric error has been detected
bfi_cch = 3; both parity
and
bad metric errors have been detected.
cch_msg[12] contains the CCH message consisting of 184 bits. The bits
are stored in a packed format with 16-bits per word and LSB first order.
Unused MSBs are set to zero.
CM_decoder_SCH
8
rxqual_ber
bfi_cch
cch_msg[12]
Channel decoder synchronization channel.
bfi_sch is the bad frame indication:
bfi_sch = 0; the decoded SCH message is OK
bfi_sch = 1; a parity error has been detected
bfi_sch = 2; a bad metric error has been detected
bfi_sch = 3; both parity
and
bad metric errors have been detected.
sch_msg[2] contains the decoded SCH message consisting of 25 bits. The
bits are stored in a packed format with 16-bits per word and LSB first order.
Unused bits are set to zero.
9
bfi_sch
sch_msg[2]
DESCRIPTION
ID
PARAMETERS
RETURN
VALUES
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCF5083H/001/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/5V2/F3 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF5083H/F2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GSM signal processing IC
PCF51AC128ACFUE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
PCF51AC128ACLKE 功能描述:32位微控制器 - MCU 32 Bit 128K FLASH 32K RAM CAN EN RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風格:SMD/SMT
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