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参数资料
| 型号： | W6694ACD |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 数字传输电路 |
| 英文描述： | DATACOM, ISDN CONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48 |
| 文件页数： | 14/42页 |
| 文件大小： | 567K |
| 代理商： | W6694ACD |
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Preliminary Data Sheet
W6694A USB-ISDN S/T-Controller
-21-
Publication Release Date: May, 2001
Revision 1.03
ISOE
D_XFR
D_XCOL
D_XDOV
D_XDUN
D_RDOV
D_LEN2
D_LEN1
D_LEN0
D_DATA
...
B1_XFR
B1_XDOV
B1_XDUN
B1_RDOV
B1_LEN3
B1_LEN2
B1_LEN1
B1_LEN0
B1_DATA
...
B2_XFR
B2_XDOV
B2_XDUN
B2_RDOV
B2_LEN3
B2_LEN2
B2_LEN1
B2_LEN0
B2_DATA
...
ISOE
Isochronous-OUT Error
This bit is set to indicate that the most recent received Isochronous-OUT packet has CRC error. This bit will remain
set, until a CMDR1:CISOE clears it.
XCOL Transmit Collision (D channel only)
This bit indicates a D channel collision on the S-bus has been detected. The data in D channel XFIFO will be
automatically re-transmitted, until the whole HDLC frame are successfully transmitted. This bit will remain set,
until software issue CMDR1:DXEN to clear this bit.
XFR
Transmit FIFO Ready
It is set when XFIFO has at least half of the XFIFO size available for incoming USB data.
XDUN Transmit Data Under-run
The corresponding XFIFO has run out of data. For D and B channel, the XFIFO is reset and disabled for that
channel. This bit is cleared when XFIFO is enabled by XEN bit.
XDOV Transmit Data Overflow
The corresponding XFIFO has overflow condition. Data in XFIFO are overwritten by incoming USB data. For D
and B channel, the XFIFO is reset and disabled for that channel. This bit is cleared when XFIFO is enabled by XEN
bit.
RDOV Receive Data Overflow
The corresponding RFIFO has overflow condition. Data in RFIFO are overwritten by incoming ISDN data. When
overflow condition occurred, the D and B channel RFIFO is reset and disabled for that channel. This bit is cleared
when RFIFO is enabled by REN bit.
7.2.8 Suspend and Resume
W6694A supports USB suspend and resume function as described in USB specification 1.1. When there is more than
three millisecond period of inactivity on the USB, W6694A will automatically enter into a low-power suspend state. In this
state, most of the ISDN and USB module will be powered off to consume minimum power. But the internal register values
are preserved. Therefore it is recommended that the software perform necessary control to W6694A before power-down. The
W6694A will leave suspend mode only when one of the two condition happens: host or device wake-up.
(i). Host-Initiated Wake-up
The USB host may wake-up W6694A by sending traffic on USB. On detected this wake-up signal, W6694A will
automatically resume to normal operation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W6694CD | 制造商:WINBOND 制造商全称:Winbond 功能描述:USB Bus ISDN S/T-Controller |
| W66ARX-18 | 制造商:Magnecraft 功能描述: |
| W66MAF185X | 制造商:Panasonic Industrial Company 功能描述:CRT |
| W66R_1G WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| W66TX-25 | 制造商:Magnecraft 功能描述: |
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