參數(shù)資料
型號： DM560P
廠商： Electronic Theatre Controls, Inc.
英文描述： V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set
中文描述： .90綜合數(shù)據(jù)/傳真/語音/揚聲器調(diào)制解調(diào)器設(shè)備集
文件頁數(shù)： 22/43頁
文件大?。?/td> 242K
代理商： DM560P
DM560P
V.90 Integrated Data/Fax/Voice/Speakerphone Modem Device Set
next, isolation data, and then resource data port.
When a read from the PnP resource data register
occurs, the data stored in SRAM will be sent to the
ISA data bus, and the data pointer will be advanced
by 1. When the data pointer is equivalent to the data
length, the next data read will change the pointer
value to the beginning of resource data block and
repeat the process for the other fixed resource data.
22
Preliminary
Version: DM560P-DS-P07
August 11, 2000
Isolation and Resource Data
The DM6583 has a built in 64-byte SRAM that can
be accessed by the micro-controller and PnP
Isolation and Resource Data Registers. Through
port F800H, the micro-controller can load serial data
and part of the resource data to SRAM byte by byte.
It is important to note that the length of the data
frame to be programmed should be loaded first,
Resource Data Block ={
30,47,01,f8, 02,f8, 02,08, 08,
30,47,01,f8, 03,f8, 03,08, 08,
30,47,01,e8,03,e8,03,08, 08,
30,47,01,e8,02,e8,02,08, 08,
30,47,01,e8,03,e8,03,08, 08,
30,47,01,e8,02,e8,02,08, 08,
30,47,01,e8,03,e8,03,08, 08,
30,47,01,e8,02,e8,02,08, 08,
30,47,01,f8, 03,f8, 03,08, 08,
30,47,01,f8, 02,f8, 02,08, 08,
30,47,01,00,02,f8, 03,08, 08,
38,79}
22, 08,
22, 10,
22, 10,
22, 08,
22, 20,
22, 20,
22, b8,
22, b8,
22, b8,
22, b8,
22, b8,
00
00
00
00
00
00
9c
9c
9c
9c
9c
* The data pointer will return to 1 when a Hardware Reset or Software Wake[CSN] occurs.
On powering up, the modem card detects RSTDRV,
sets CSN to 0, loads the isolation data and resource
data into the built-in 64-byte SRAM, programs the
Auto-configuration Register, configures the hardware
from the Auto-configuration Register, and then enters
the Wait for Key state. There is a required 2 msec
delay from either a RSTRDV or a PnP Reset
command to any Plug and Play access to allow a card
to load this information via internal micro-controller.
Cards in the Wait For Key state will not acknowledge
any access to their auto-configuration ports until the
Initiation Key is detected and they ignore all ISA
access to their Plug and Play interface. When the
cards have received the initiation key, they enter the
Sleep state. In this state, the cards listen for a Wake
[CSN] command with the write data set to 00H. This
Wake[CSN] command will set all cards to the Isolation
state and reset the serial identifier/resource data
pointer to the beginning.
The first time the cards enter the Isolation state, it is
necessary to set the READ_DATA port address using
the Set RD_DATA port command. The software
should then use isolation protocol to check the
selected READ_DATA port address and to see if it is
in conflict with any other device.
Next, 72 pairs of reads are performed to the Serial
Isolation Register to isolate a card, as previously
described. When the checksum read from the card is
valid, it means the card is already isolated. The
isolated card remains in the Isolation state, while all
other cards fail the isolation protocol and are returned
to the Sleep state. The CSN on the isolated card is set
to a unique number, causing this card to change to the
Configuration state. Sending a Wake[0] command
causes this card to change back to Sleep state, and all
cards with a CSN value of zero to change to the
Isolation state. This entire process will repeat until no
Plug and Play cards are detected.
相關(guān)PDF資料
PDF描述
DM562P V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in
DM6580 V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in
DM6580L V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in
DM6588F V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in
DM5806 DM5806 DATA MODULE DIGITAL I/O BOARD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DM562AP 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in
DM562AP_07 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in
DM562P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:V.90 Intergrated Data/Fax/Voice/Speakephone Modem Device Single Chip with Memory Built in
DM562P_04 制造商:DAVICOM 制造商全稱:DAVICOM 功能描述:V.90 Integrated Data/ Fax/Voice/Speakerphone Modem Device Single Chip with Memory Built in
DM5-680J 制造商:FLORIDA MISC. 功能描述:
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(jìn)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(jìn)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

*
*
*