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參數(shù)資料
| 型號： | DS2182A |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Digital Transmission Controller |
| 英文描述： | DATACOM, FRAMER, PDIP28 |
| 封裝： | 0.600 INCH, DIP-28 |
| 文件頁數(shù)： | 22/25頁 |
| 文件大?。?/td> | 270K |
| 代理商： | DS2182A |
DS2182A
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SERIAL PORT READ/WRITE Figure 3
NOTES:
1. SDI is sampled on rising edge of SCLK.
2. SDO is updated on falling edge of SCLK.
OPERATION OF THE COUNTERS
All four of the counters in the DS2182A can be preset by the user to establish an event count interrupt
threshold. The counters count up from the preset value until they reach saturation. At saturation, each
additional event occurrence sets the appropriate bit in RSR2 and generates an interrupt if enabled by
RIMR2.
The DS2182A contains an auto counter reset feature in the burst read mode. If RCR1.4 is set, then the
user can burst read the four counters (five registers), and all four counters will be automatically reset to 0
after the read takes place. Since the burst mode can be terminated at any time by taking CS high, the user
has the option of reading all of the registers or only the counters. If RCR1.4 is set, then any read of the
registers, burst mode or not, will clear the count in all four counters. If the user wishes to read the port
and not clear the counters, then RCR1.4 must be cleared first.
The counter registers can be read or written to at any time with the serial port, which operates totally
asynchronously with the monitoring of the T1 line. Reading a register will not affect the count as long as
RCR1.4 is cleared. The dual buffer architecture of the DS2182A insures that no error events will be
missed while the serial port is being accessed for reads.
BVCR1: BIPOLAR VIOLATION COUNT REGISTER 1;
BVCR2: BIPOLAR VIOLATION COUNTER REGISTER 2 Figure 4
MSB
LSB
BV7
BV6
BV5
BV4
BV3
BV2
BV1
BV0
SYMBOL
POSITION
NAME AND DESCRIPTION
BV7
BVCR.7
MSB of bipolar violation count
BV0
BVCR.0
LSB of bipolar violation count
Bipolar Violation Count Register 1 (BVCR1) is the most significant word and BVCR2 is the least
significant word of a presettable 16-bit counter that records individual bipolar violations. If the B8ZS
mode is enabled (RCR2.2 = 1), then B8ZS code words are not counted. The BVCR can also be
programmed to count excessive zeros by setting the RCR2.5 bit. In this mode, the BVCR will count
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS2182AQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM， Other/Special/Miscellaneous |
| DS2182N | 功能描述:網(wǎng)絡控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2182Q | 功能描述:網(wǎng)絡控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS2182Q/T&R | 制造商:Maxim Integrated Products 功能描述:T1 LINE MONITOR-PLCC-TRL - Tape and Reel |
| DS2182Q/T&R | 功能描述:網(wǎng)絡控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
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