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參數資料
型號: W6692
廠商: WINBOND ELECTRONICS CORP
元件分類: 通信及網絡
英文描述: PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器)
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP100
封裝: 14 X 20 MM, 2.75 MM HEIGHT, QFP-100
文件頁數: 28/84頁
文件大小: 473K
代理商: W6692
W6692
- 28 -
7.4 B Channel Switching
Each B channel in S/T bus or U transceiver can be individually programmed to connect to one of the
three data ports: B channel HDLC controller, PCM port 1 or PCM port 2. In addition, the PCM ports
can be programmed to connect to the B channel HDLC controller for voice recording/ retrieving from
main memory in answering machine applications. In this case, only extended transparent mode can
be used.
The switching matrix is controlled by PXC bit in PCTL register and BSW1-0 bits in B1_MODE and
B2_MODE registers as follows:
A special mode is provided (BSW1-0 = 11B) in which case the PCM port can receive data from layer
1 and the HDLC receiver can receive data from PCM port simultaneously.
7.5 PCM Port
There are two PCM ports in W6692. Each PCM port can connect to a PCM codec filter chip. These
two PCM ports share the same signals except for the frame synchronization clocks. The frame
synchronization clocks (PFCK1-2) are 8 KHz and the bit synchronization clock (PBCK) is 1.536 MHz.
The bit data rate is 64 kbps per port.
7.6 D Channel HDLC Controller
There are two HDLC protocols that are used for ISDN layer 2 functions: LAPD and LAPB. Their frame
formats are shown below.
layer 1
/GCI
HDLC
B1
01
HDLC
B2
PCM1
PCM2
00
10
01
00
10
0
0
1
1
BSW1-0 bits
PXC bit
layer 1
/GCI
相關PDF資料
PDF描述
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)
W6810 SINGLE-CHANNEL VOICEBAND CODEC
W6810IE SINGLE-CHANNEL VOICEBAND CODEC
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相關代理商/技術參數
參數描述
W6692A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TE Mode S/T Controller with PCI 2.2 Interface and ACPT
W6692ACD 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC
W6692ACF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC
W6694 制造商:WINBOND 制造商全稱:Winbond 功能描述:USB Bus ISDN S/T-Controller
W6694A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TE Mode S/T Controller with USB 1.1 Interface