- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366329 > ACE9050 (Mitel Networks Corporation) System Controller and Data Modem(為蜂窩式手機(jī)提供控制和邏輯接口功能的系統(tǒng)控制器和數(shù)據(jù)調(diào)制解調(diào)器) PDF資料下載
參數(shù)資料
| 型號(hào)： | ACE9050 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | System Controller and Data Modem(為蜂窩式手機(jī)提供控制和邏輯接口功能的系統(tǒng)控制器和數(shù)據(jù)調(diào)制解調(diào)器) |
| 中文描述： | 系統(tǒng)控制器和數(shù)據(jù)調(diào)制解調(diào)器（為蜂窩式手機(jī)提供控制和邏輯接口功能的系統(tǒng)控制器和數(shù)據(jù)調(diào)制解調(diào)器） |
| 文件頁數(shù)： | 36/52頁 |
| 文件大?。?/td> | 366K |
| 代理商： | ACE9050 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁當(dāng)前第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁
ACE9050
36
SQLEV
[3:0]
Samples
AMPS %
(50 samples)
TACS %
(63 samples)
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
-
-
-
-
-
-
100
96
92
88
84
80
76
72
68
64
98
95
92
89
86
83
79
76
73
70
67
63
60
57
54
51
Table 72 Squelch level settings
Word Sync Detector
The Word Sync Detector contains the hardware to detect the
Barker code, synchronise the received bytes to the incoming
data frame, extract Busy/Idle bits and update the RXD and
SQRX registers. It also generates the IRQ-WS, IRQ-RX and
IRQ-BI-SAT nterrupts. The hardware has four modes of operation
which can be selected by software.
The Barker code sequence is used for achieving frame
synchronisation to the incoming data word boundaries. It occurs
in a message after the dotting sequence and before the first data
word. The hardware detection circuit is an 11-bit serial shift
register with appropriate asynchronous decode logic to detect
the Barker code (11100010010). The action upon detecting
word sync depends on the mode of the hardware.
The Word Sync Detector contains a parallel register, into
which the incoming data, RXD, is clocked. When the hardware
is in the appropriate mode the Busy/Idle bits are removed from
the data sequence before being fed to the Data Receive (RXD)
register. The Word Sync Detector also tallies the number of times
the Squelch level flag is set for an eight-bit byte and stores this
in the SQRX register. The Word Sync Detector contains byte and
frame counters which generate the IRQ-RX interrupt when the
data and squelch registers are updated. The software must
ensure these registers are read within the suitable time frame
after IRQ-WS to avoid losing data.
Associated Registers
VC_CCN
Voice/Control Channel MODPRT0 bit0 (Table 73)
This bit allows the software to control the mode of the Word
Sync Detector between Control channel and Voice channel. It
also operates in conjunction with the ENWS bit; VC_CCN must
be set to reflect the category of the current channel.
ENWS
Enable Word Sync MODPRT 0 [1] (Table 74)
This bit allows the software to control the mode of the Word
Sync Detector between ‘Sync on Barker’ and ‘ Not Sync on
Barker’. It also operates in conjunction with the VC_CCN bit.
VC_CCN
0
1
Control channel
Voice channel
Mode
Table 73
ENWS
0
1
Description
Data will not reframe if a Barker code is detected
Data will reframe if a Barker code is detected
NOTE: Regardless of the setting of ENWS the IRQ-WS will be
generated on detection of a Barker code.
Table 74
RXD[7:0]
MODPRT2 Read (Table 75)
This register contains the data from a forward channel (FVC
or FOCC) segmented into 8-bit chunks.
Bit
7: 0 RXD[7:0] Data byte received
Name
Function
Table 75
The first bit received goes to the most significant bit of the
register. On a Control channel the Busy/Idle bits can be extracted.
All other data on the Control channel and all data on the voice
channel will be present in the registers. This includes the dotting
and Barker sequences. The IRQ-RX interrupt occurs when the
registers have been updated.
SQRX[3:0]
MODPRT1[3:0] Read (Table 76)
These four bits contain the number of bits in the present
received byte that have surpassed the Squelch threshold set. It
will thus contain a number between 0 and 8. This register is
updated at the same time as the RXD register.
SQRX [3:0]
Number of bits surpassing Squelch level
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001 to 1111
0
1
2
3
4
5
6
7
8
Not valid
Table 76 Possible Squelch readings
B_I
MODPRT1[6] Read (Table 77)
This bit is the extracted Busy/Idle bit from a Control channel
data stream. Note that an IRQ-BI-SAT interrupt occurs when this
bit is updated.
B_I
0
1
0
1
Busy/Idle bit
Table 77
Modes of Operation
The Word Sync Detector has four modes of operation. The
modes affect how Busy/Idle bits a handled, the function of the
IRQ-BI-SAT interrupt and the action of the Word Sync Detector
upon finding a Barker code in the incoming data stream. The
modes are selected via the VC_CCN and ENWS bits, as shown
in Table 78.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ACE9050 | System Controller and Data Modem Advance Information |
| ACFA-450 | AM CERAMIC FILTERS |
| ACFA-455 | AM CERAMIC FILTERS |
| ACFA-459 | AM CERAMIC FILTERS |
| ACFA-468 | AM CERAMIC FILTERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ACE9050C/IW/FP1N | 制造商:Microsemi Corporation 功能描述:PB FREE SYSTEM CONTROLLER & DATA MODEM - Bulk |
| ACE9050C/IW/FP1Q | 制造商:Microsemi Corporation 功能描述:PB FREE SYSTEM CONTROLLER & DATA MODEM - Bulk |
| ace9050c/iw/fp8q | 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| ace9050d/ig/gp1n | 制造商:Microsemi Corporation 功能描述:CNTRLR AND DATA MODEM 100LQFP - Bulk 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: |
| ACE9050D/IG/GP2N | 制造商:Microsemi Corporation 功能描述:CNTRLR AND DATA MODEM 100LQFP - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。