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): 64/136頁
文件大?。?/td> 602K
代理商: PCF5083
1996 Oct 29
64
Philips Semiconductors
Objective specification
GSM signal processing IC
PCF5083
The MP_CONTROL_BUFF may be used to control several features of the DSP. It consists of 4 parameter fields as given
in Tables 56 and 57.
Table 56
Contents of MP_CONTROL_BUFF
Table 57
Associated I/O pins
Note
1.
If proc_trace_buff[1] is 0, then IO3 is set on errors.
OFFSET
DESCRIPTION
0
time-out_freq: ECLK input frequency divided by 10 kHz. After reset time-out_freq is set to
3 (32.768 kHz clock).
eclk_cycle_count: contains number of ECLK cycles spent most recently called procedure. Required for
test purposes only.
proc_trace_buff[2]: for debugging purposes the DSP provides a procedure trace facility. The IDs of the
procedures to be traced must be stored in proc_trace_buff. If any of these procedures is executing, its
corresponding I/O pin (see Table 57) is set to a logic 0.
1
2 to 4
LOCATION
I/O PIN
DEFAULT AFTER RESET
proc_trace_buff[0]
proc_trace_buff[1]
IO2
IO3
17 CP_rx_normal_burst
00 trace errors; note 1
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