參數(shù)資料
型號： PONE-000-01
廠商： Electronic Theatre Controls, Inc.
英文描述： The ideal device for simple nodes, such as switches, actuators and sensor
中文描述： 在簡單的節(jié)點，如交換機，執(zhí)行器和傳感器的理想設(shè)備
文件頁數(shù)： 12/56頁
文件大小： 432K
代理商： PONE-000-01
March 2000
CEWay
PL-One Data Sheet
D-CW-0100-04
Page 12 of 56
PLSES Handshake Interrupt Generation
The PL-One firmware is supplied with an interrupt from the PLSES which is called the “PLSES Handshake
Interrupt”. This uses the standard 8052 INT0* interrupt. This means that the port bit P3.2 is no longer
available for the user application. P3.2 will normally read as 1, but will fall to 0 as soon as an interrupt is
generated from the PLSES. It will remain at 0 until the Ph_Confirm_Reg is read.
Note that this interrupt (INT0) MUST be set to the high priority level to ensure that no packets are lost. For
this interrupt to be properly configured, the following four bits need to be set:
PX0: Sets INT0 to high priority
IT0: INT0 triggers on a falling edge
EX0: INT0 is enabled
EA: Enable interrupts
The PLSES Handshake Interrupt is used by the PL-One firmware to perform its communication handshake
with the PLSES, and may indicate that valid data is present in the Ph_Rx_Buffer. It is provided by PLSES
based on some specific PLSES states and events. These are defined in Table 7. The Ph_Confirm_Reg
needs to always be read to determine the cause of the interrupt, and to process it accordingly.
The PLSES Handshake Interrupt is reset only after a PLSES Handshake Interrupt has been generated,
followed by the reading of the Ph_Confirm_Reg. Note that the PLSES Handshake Interrupt needs to have
been generated first, in order to distinguish between the Ph_Confirm_Reg being read by the user
application while in its main processing. This can be shown as follows:
1. PLSES Handshake Interrupt is generated
2. Ph_Confirm_Reg is read
3. The PLSES Handshake Interrupt is reset
Ph_Tx_Buffer
The Ph_Tx_Buffer is used to pass initialization parameters and data to be transmitted down to the PLSES.
Setting the
lzs
bit in Ph_Request_Reg will result in all leading zeros in this byte not being transmitted. To
simply transmit a field delimiter without any data symbols, this byte should be loaded with 00 hex, and
transmitted with leading zero suppression. The only exception to this is when transmitting the Preamble
field, in which case the contents of the Ph_Tx_Buffer have no effect on the Preamble which is transmitted.
Ph_Request_Reg
The Ph_Request_Reg is initialized with 00 hex following a hardware reset. The Ph_Request_Reg is read
and interpreted by the PLSES each time it is written to. This value is maintained until it is next written to by
the PL-One firmware. The various state transitions that can be brought about by writing to
Ph_Request_Reg are listed in Table 8.
相關(guān)PDF資料
PDF描述
POPA211AID 1.1nV/HZ Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package
POPA827AID Low-Noise, High-Precision, JFET-Input, OPERATIONAL AMPLIFIER
PP-2005-M BATTERY CORDLESS PHONE
PP-2010-U BATTERY CORDLESS PHONE
PP-450-U BATTERY CORDLESS PHONE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PONQME48T40050NGA0G 制造商:Power-One 功能描述:
POP.125.GN 功能描述:環(huán)形推拉式連接器 SPANNER FOR OUTERSHELL RoHS:否 制造商:Hirose Connector 產(chǎn)品類型:Connectors 系列:HR10 觸點類型:Socket (Female) 外殼類型:Receptacle 觸點數(shù)量:4 外殼大小:7 安裝風(fēng)格:Panel 端接類型:Solder 電流額定值:2 A
POP-100 制造商:AAEON 制造商全稱:AAEON 功能描述:10.2a?? 16:9 Point Of Promotion Panel PC
POP-1000 制造商:Heyco Products Inc 功能描述:
POP1035 制造商:MODELCRAFT 功能描述:MAGNIFIER EYEGLASS 制造商:MODELCRAFT 功能描述:MAGNIFIER, EYEGLASS 制造商:MODELCRAFT 功能描述:MAGNIFIER, EYEGLASS; Tool Body Material:Plastic; For Use With:Precision & Miniature Works; Magnification:2.8x; SVHC:No SVHC (19-Dec-2012); Colour:Black ;RoHS Compliant: NA
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*