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參數(shù)資料
| 型號(hào)： | HI-8583 |
| 廠商： | Holt Integrated Circuits |
| 英文描述： | ARINC 429 SYSTEM ON A CHIP |
| 中文描述： | ARINC公司429片上系統(tǒng) |
| 文件頁(yè)數(shù)： | 4/15頁(yè) |
| 文件大小： | 419K |
| 代理商： | HI-8583 |
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FIGURE 1. ARINC RECEIVER INPUT
BYTE 2
DATA
BUS
BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
ARINC
BIT
CR15=0
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
ARINC
CR15=1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
The HI-8582 guarantees recognition of these levels with a common
mode Voltage with respect to GND less than ±5V for the worst case
condition(4.75Vsupplyand13Vsignallevel).
The tolerances in the design guarantee detection of the above
levels, so the actual acceptance ranges are slightly larger. If the
ARINC signal is out of the actual acceptance ranges, including the
nulls,thechiprejectsthedata.
RECEIVER LOGICOPERATION
BITTIMING
BIT RATE
PULSE RISE TIME
PULSE FALL TIME
PULSE WIDTH
Figure2showsablockdiagramofthelogicsectionofeach receiver.
The ARINC 429 specification contains the following timing specifi-
cation for the received data:
100K BPS ±1% 12K -14.5K BPS
1.5 ±0.5 μsec
1.5 ±0.5 μsec
5 μsec ±5%
10 ±5 μsec
10 ±5 μsec
34.5 to 41.7 μsec
If the
specifications and rejects outside the tolerances. The way the logic
operation achieves this is described below:
pin is high, the HI-8582 accepts signals that meet these
HIGH SPEED
LOW SPEED
NFD
3. Each data bit must follow its predecessor by not less than 8
samples and no more than 12 samples. In this manner the bit
rate is checked. With exactly 1MHz input clock frequency, the
acceptabledatabitratesareasfollows:
83KBPS
125KBPS
10.4KBPS
15.6KBPS
4. The Word Gap timer samples the Null shift register every 10
input clocks (80 for low speed) after the last data bit of a valid
reception.
If the Null is present, the Word Gap counter is
incremented. Acountof3willenablethenextreception.
HIGHSPEED
LOWSPEED
DATABITRATEMIN
DATABITRATEMAX
If
data stream totaling 32 bits is accepted even with gaps between
bits. The protocol still requires a word gap as defined in 4. above.
is held low, frequency discrimination is disabled and any
NFD
FUNCTIONAL DESCRIPTION (cont.)
THERECEIVERS
ARINCBUSINTERFACE
Figure 1 shows the input circuit for each receiver. The ARINC 429
specificationrequiresthefollowingdetectionlevels:
ONE
NULL
ZERO
+6.5Volts to +13Volts
+2.5Volts to -2.5Volts
-6.5Volts to -13Volts
STATE
DIFFERENTIALVOLTAGE
1. Keytotheperformanceofthetimingcheckinglogicisanac-
curate 1MHz clock source. Less than 0.1% error is recom-
mended.
2. The sampling shift registers are 10 bits long and must show
three consecutive Ones, Zeros or Nulls to be considered valid
data. Additionally,fordatabits,theOne or Zero in the upper
bits of the sampling shift registers must be followed by a Null in
thelowerbitswithinthedatabittime. ForaNullinthewordgap,
three consecutive Nulls must be found in both the upper and
lowerbitsofthesamplingshift register. In thismannerthe mini-
mumpulsewidthisguaranteed.
ARINC 429 DATA FORMAT
Control register bit CR15 is used to control how individual bits in the
receivedortransmittedARINCwordaremappedtotheHI-8582data
bus during data read or write operations. The following table
describesthismapping:
DATA
BUS
BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD BD
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
ARINC
BIT
CR15=0
13
12
11
10
9
31
30
32
1
2
3
4
5
6
7
8
BYTE 1
ARINC
BIT
CR15=1
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
HI-8582, HI-8583
HOLT INTEGRATED CIRCUITS
4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HI-8583PQI | ARINC 429 SYSTEM ON A CHIP |
| HI-8583PQT | ARINC 429 SYSTEM ON A CHIP |
| HI-8583CJI | ARINC 429 SYSTEM ON A CHIP |
| HI-8583CJI-10 | ARINC 429 SYSTEM ON A CHIP |
| HI-8583CJT | ARINC 429 SYSTEM ON A CHIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HI-8583CJI | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:ARINC 429 SYSTEM ON A CHIP |
| HI-8583CJI-10 | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:ARINC 429 SYSTEM ON A CHIP |
| HI-8583CJIF | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:ARINC 429 System on a Chip |
| HI-8583CJIF-10 | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:ARINC 429 System on a Chip |
| HI-8583CJT | 制造商:HOLTIC 制造商全稱:Holt Integrated Circuits 功能描述:ARINC 429 SYSTEM ON A CHIP |
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