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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)： | 8/28頁 |
| 文件大小： | 651K |
| 代理商： | SCN2652 |
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Philips Semiconductors
Product specification
SCN2652/SCN68652
Multi-protocol communications controller (MPCC)
1995 May 01
8
ASSEMBLE CHARACTER
IN RxSR. ZERO DELETION,
ACCUMULATE CRC IF
SPECIFIED
A
INITIALIZE PCSAR, PCR
RxE
= 1
RECEIVER
STATUS BIT 0
→
1
EXCEPT RSOM
PROCESSOR
RxE = 1
NO
FLAG
IN CCSR*
YES
NO
* TEST MADE
EVERY RxC TIME
NO
S/F = 1
FOR ONE RxC
BIT TIME
(1) OVERRUN (ROVRN)
CAUSES LOSS OF
SUBSEQUENT
CHARACTERS
IS
IT 1st
CHARACTER
AFTER FLAG
NO
SEC.
STATION
MODE
YES
SECONDARY
STATION
ADDRESS
IS
CHARACTER
= PCSAR
L
NO
YES
YES
(PCSAR
12
= 1)
YES
NO
FLAG
IN CCSR*
YES – END OF MESSAGE
NO
RxSR
→
RxDB
NO
(PCSAR
12
= 0)
START OF
MESSAGE
RxA = 1
RSOM = 1
FOR ONE
CHARACTER
TIME
RxDA = 1
(PROCESSOR
SHOULD
READ RxDB)
FLAG
IN CCSR*
YES
YES
RxE
→
0
NO
A
YES
RXSA = 1
(PROCESSOR SHOULD
READ AND EXAMINE
RDSR
– REOM, RAB/GA,
ROVRN, ABC, RERR)
S/F = 1 FOR ONE RxC
BIT TIME
REOM = 1, RxA = 0
SD00061
Figure 6. BOP Receive
TRANSMITTER OPERATION
General
After the parameter control registers (PCSAR and PCR) have been
initialized, TxSO is held at mark until TSOM (TDSR
8
) is set and TxE
is raised. Then, transmitter operation depends on protocol mode.
TxBOP Operation
Transmitter operation for BOP is shown in Figure 8. A FLAG is sent
after the processor sets the Transmit Start of Message bit (TSOM)
and raises TxE. The FLAG is used to synchronize the message that
follows. TxA will also be asserted. When TxBE is asserted by the
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| 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 |
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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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