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參數資料
| 型號： | W6691 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | ISDN S/T Interface Transceiver |
| 中文描述： | 綜合業務數字網的S / T接口收發器 |
| 文件頁數： | 60/106頁 |
| 文件大?。?/td> | 428K |
| 代理商： | W6691 |
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Preliminary W6691
Publication Release Date: Sep 2001
60 Revision 1.1
XMS Transmit Message Start/Continue
Setting this bit will start or continue the transmission of a frame. The opening flag is automatically added by
the HDLC controller. Writing “0” to this bit has no effect. If XMS bit is set to “1” for operating “Transmit
Message Start/Continue”, It is not necessary to reset XMS bit to “0” by host processor. That is to say, once
XMS is set to “1”, XMS bit is reset to “0” by W6691 automatically.
XME Transmit Message End
Setting this bit indicates the end of frame transmission. The D_ch HDLC controller automatically appends
the CRC and the closing flag after the data transmission. Writing “0” to this bit has no effect. If XME bit is set to
“1” for operating “Transmit Message End”, It is not necessary to reset XME bit to “0” by host processor. That is
to say, once XME is set to “1”, XME bit is reset to “0” by W6691 automatically.
Note
: If the frame
≤
32 bytes, XME plus XMS commands must be issued at the same time.
XRST Transmitter Reset
Setting this bit resets the D_ch HDLC transmitter and clears the D_XFIFO. The transmitter will send inter
frame time fill pattern (which is 1's) immediately. This command also results in a transmit FIFO ready
condition. Writing “0” to this bit has no effect. If XRST bit is set to “1” for operating “Transmit Reset”, It is not
necessary to reset XME bit to “0” by host processor. That is to say, once XRST is set to “1”, XRST bit is reset
to “0” by W6691 automatically.
8.7.4 D_ch Mode Register D_MODE
Read/Write
Address 03H
Value after reset : 00H
7
6
5
4
3
2
1
0
0
RACT
XACT
0
S_RLPD
MFD
L2_DLP S_RLP
RACT Receiver Active
Setting this bit activates the D_ch HDLC receiver. This bit can be read. The receiver must be in active state
in order to receive data.
Note:
The receiver is deactive after hardware reset or software reset.
相關PDF資料 |
PDF描述 |
|---|---|
| W6691CD | ISDN S/T Interface Transceiver |
| W6691CP | ISDN S/T Interface Transceiver |
| W6692 | PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器) |
| W6693A | USB Bus ISDN S/T Interface Controller(USB總線的ISDN S/T接口控制器) |
| W6694 | PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器) |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W66910 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| W66910CD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:TE Mode ISDN S/T-Controller with Microprocessor Interface |
| W6691CD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:ISDN S/T Interface Transceiver |
| W6691CP | 制造商:WINBOND 制造商全稱:Winbond 功能描述:ISDN S/T Interface Transceiver |
| W6692 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:PCI Bus ISDN S/T-Controller |
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