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參數(shù)資料
| 型號： | SCN2652 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Multi-protocol communications controller MPCC |
| 中文描述： | 多協(xié)議通信控制器茂名 |
| 文件頁數(shù)： | 20/28頁 |
| 文件大?。?/td> | 651K |
| 代理商： | SCN2652 |
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Philips Semiconductors
Product specification
SCN2652/SCN68652
Multi-protocol communications controller (MPCC)
1995 May 01
20
TIMING DIAGRAMS
(Continued)
TRANSMIT UNDERRUN
TxC
DBEN
2
SET TSOM
NOTES:
1.
TxU goes active relative to TxC falling edge if TxBE has not been serviced after n-1/2 TxC times (where n = transmit character length). TxU is reset on the TxC falling edge follow-
ing assertion of the TSOM command.
2.
An underrun will occur at the next character boundary if TEOM is reset and the transmitter remains enabled, unless the TSOM command is asserted or a character is loaded into
the TxDB.
TxU
1
SD00070
Figure 15. Timing Diagrams (cont.)
RECEIVE – START OF MESSAGE
RxC
RxA
RxDA
2
DBEN
1st CHAR READ
2nd CHAR READ
S/F
3
RxE
NOTES:
1.
RxA goes high relative to falling edge of RxC when RxE is high and: a. A data character following two SYNC’s is in RxDB (BCP mode). b. Character following FLAG is in RxDB
(BOP primary station mode). c. Character following FLAG is in RxDB and character matches the secondary station address or all parties address (BOP secondary station mode).
2.
RxDA goes high on RxC falling edge when a character in RxDB is ready to be read. It comes up before RxSA and goes low on the falling edge of DBEN when RxDB is read.
3.
S/F goes high relative to rising edge of RxC anytime a SYNC (BCP) or FLAG (BOP) is detected.
1
1st CHAR READY
TO BE READ
2nd CHAR READY
TO BE READ
SD00071
Figure 16. Timing Diagrams (cont.)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SCN2652AC2A44 | NT Series Toggle Switch, 1 pole, 3 position, Solder terminal, Locking Lever |
| SCN2652AC2N40 | Multi-protocol communications controller MPCC |
| SCN68652 | Multi-protocol communications controller MPCC |
| SCN68652AC2A44 | Multi-protocol communications controller MPCC |
| SCN68652AC2N40 | Multi-protocol communications controller MPCC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SCN2652AC1I40 | 制造商:North American Philips Discrete Products Div 功能描述:COMMUNICATIONS INTERFACE, 40 Pin, Ceramic, DIP |
| SCN2652AC1N40 | 制造商:North American Philips Discrete Products Div 功能描述:COMMUNICATIONS INTERFACE, 40 Pin, Plastic, DIP 制造商:NXP Semiconductors 功能描述:COMMUNICATIONS INTERFACE, 40 Pin, Plastic, DIP |
| SCN2652AC2A44 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multi-protocol communications controller MPCC |
| SCN2652AC2F40 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multi-protocol communications controller MPCC |
| SCN2652AC2N40 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multi-protocol communications controller MPCC |
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