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參數資料
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: 96/136頁
文件大小: 602K
代理商: PCF5083
1996 Oct 29
96
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
9.4.4.4
Handover mode
Table 74 shows the procedures to be executed within the DSP for processing of a TCH/FS multiframe in Handover mode.
Table 74
Procedures to be executed for processing a TCH/FS multiframe in handover mode
Notes
1.
2.
3.
Dummy encryption to increment TDMA frame counters (skip Idle + SACCH frame).
CM_DECODER_CCH is only called, if the current multiframe contains the 4th SACCH sub-block.
Dummy encryption to increment TDMA frame counters (skip Idle frame).
FN MOD 26
PROCEDURES
N
W
12
RX
TX
MX
0, 4, 13, 17
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CP_power_measure (agc_gain1)
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF2, tsc, agc_gain)
CI_encrypt (SCRATCH_BUFF,1); note 1
CP_power_measure (agc_gain1)
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF3, tsc, agc_gain)
CI_encrypt (SCRATCH_BUFF, 4)
MP_read_audio_in_fifo (SCRATCH_BUFF, 160)
CP_power_measure (agc_gain1)
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF4, tsc, agc_gain)
DB_fill_buffer (SCRATCH_BUFF,0,0,160)
MP_write_audio_out_fifo (SCRATCH_BUFF, 160)
CM_decoder_TCH (dtx_flag, taf, test_mode)
CP_power_measure (agc_gain1)
3, 7, 12, 16, 20 CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF1, tsc, agc_gain)
CP_power_measure (agc_gain1)
11
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (CCH_CMI_BUFFi, tsc, agc_gain)
[CM_decoder_CCH( )]; note 2
CP_power_measure (agc_gain1)
24
CP_tx_RACH (bsic, rach_msg)
CI_decrypt (SCRATCH_BUFF,1); note 3
25
CP_tx_RACH (bsic, rach_msg)
CP_rx_normal_burst (TCH_CMI_BUFF1, tsc, agc_gain)
CP_power_measure (agc_gain1)
149
156
80
8, 21
12
149
156
80
1, 5, 9, 14, 18,
22
33
149
156
80
2, 6, 10, 15,
19, 23
18
149
156
80
12
149
156
80
14
149
156
80
15
149
156
80
12
156
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