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PCF5083 Folha de dados(PDF) 92 Page - NXP Semiconductors

Nome de Peças PCF5083
Descrição Electrónicos  GSM signal processing IC
PDF  136 Pages
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Fabricante Electrônico  PHILIPS [NXP Semiconductors]
Página de início  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF5083 Folha de dados(HTML) 92 Page - NXP Semiconductors

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1996 Oct 29
92
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
9.4.4
PROCESSING A TCH/FS MULTIFRAME
9.4.4.1
Normal mode
Figure 21 depicts the timing diagram of the procedure execution timing for a TCH/FS multiframe. Table 70 shows the
procedures to be executed within the DSP for processing of a TCH/FS multiframe in normal mode. It is assumed that an
even numbered time slot is assigned.
Table 70 Procedures to be executed for processing a TCH/FS multiframe in normal mode
FN MOD 26
PROCEDURES
NW
RX
TX
MX
0
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CP_power_measure (agc_gain1)
MP_audio_sync(2, 2)
17
149
156
80
4, 13, 17
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CP_power_measure (agc_gain1)
12
149
156
80
8
{CM_encoder_CCH (cch_msg[12])}; note 1
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CP_rx_normal_burst (CCH_INFO_BUFFi, tsc)
CP_power_measure (agc_gain1)
32
149
156
80
21
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CI_encrypt (SCRATCH_BUFF1); note 2
CP_power_measure (agc_gain1)
17
149
156
80
1, 5, 9, 14, 18,
22
CP_rx_normal_burst (TCH_CMI_BUFF3, tsc, agc_gain)
CP_tx_speech (dtx, bpf, tm, taf, tsc, ff, fm[12])
CP_power_measure (agc_gain1)
33
149
156
80
2, 6, 10, 15, 19 CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
CP_rx_speech (dtx_flag, taf, test_mode)
CP_power_measure (agc_gain1)
18
149
156
80
3, 7, 12, 16, 20 CP_rx_normal_burst (TCH_CMI_BUFF1, tsc, agc_gain)
CP_power_measure (agc_gain1)
12
149
156
80
11
CP_rx_normal_burst (CCH_CMI_BUFF1, tsc, agc_gain)
[CM_decoder_CCH( )]; note 3
CP_power_measure (agc_gain1)
14
149
156
80



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