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): 83/136頁
文件大?。?/td> 602K
代理商: PCF5083
1996 Oct 29
83
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
MP_write_audio_out_fifo
The n_words located in buffer buff_id are copied from the DSP data
memory into the audio output FIFO. This FIFO collects the samples that
have to be sent to the DAC.
If the FIFO is not empty enough to receive all samples an ERROR
message is sent to the SC.
MP_write_data_frame
49
buff_id
n_words
This procedure generates an output data frame of framelength words
(typical 160) as described in Section 9.1.5.2 and writes it into the audio
output FIFO. All n_ctrl_bytes control data bytes are unpacked and written to
the control data block. If no control bytes are available, only the control data
header is transmitted. The channel decoder output data located in buffer
user_buff_id are written to the user data block.
If the audio output FIFO is not empty enough for framelength samples, an
ERROR message is automatically sent to the SC (AUDIO_FIFO_FULL).
MP_write_mod_out_fifo
77
user_buff_id
framelength
n_ctrl_bytes
ctrl_bytes[ ]
The n_words located in buffer buff_id are copied to the modulator output
FIFO. This FIFO collects the samples that have to be transmitted to the
GMSK modulator.
If the FIFO is not empty enough to receive all samples an ERROR
message is automatically sent to the SC.
MP_write_normal_bursts
50
buff_id
n_words
The n_bursts normal bursts located in buffer buff_id are copied to the
modulator output FIFO.
If the FIFO is not empty enough to receive all samples an ERROR
message is automatically sent to the SC.
50
buff_id
n_burst
DESCRIPTION
ID
PARAMETERS
RETURN
VALUES
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