參數(shù)資料
型號: W6692ACF
英文描述: ISDN LINE INTERFACE|BASIC|CMOS|QFP|100PIN|PLASTIC
中文描述: 綜合業(yè)務數(shù)字網(wǎng)線接口|基本|的CMOS | QFP封裝| 100引腳|塑料
文件頁數(shù): 40/101頁
文件大小: 851K
代理商: W6692ACF
W6692A
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reacts to this condition by writing up to a threshold length of data into the transmit FIFO and issues a
XMS command to continue the message transmission.
The microprocessor reaction time depends on the FIFO threshold setting and B channel data rate.
For example, it is 8 mS if the FIFO threshold is 64 and the B channel data rate is 64 kbps. If the
microprocessor fails to respond within the given reaction time, the transmit FIFO will hold no data to
transmit. In this case, the W6692A will automatically reset the transmitter and send idle channel
pattern defined in Bn_IDLE register. The microprocessor is informed about this via a Transmit Data
Underrun interrupt (XDUN bit in Bn_EXIR register). The microprocessor must wait until transmit FIFO
ready (via XFR interrupt), re-write data, and issue XMS command to re-transmit the data.
7.8 GCI Mode Serial Interface Bus
The GCI is a generalization and enchancement of the general purpose, serial interface bus. The
channel structure of the GCI mode is depicted below. The timing is compatible with Siemens’s IOM-2
TE mode.
Channel Structure of the W6692A GCI Mode:
FSC
CH0
CH1
CH2
B1
B2
MON0
D
C/I0
IC1
IC2
MON1
C/I1
C/I2
B1
B2
Monitor
D
C/I
MR
MX
1
st
Octet 2
nd
Octet 3
rd
Octet
4
th
Octet
DD,DU : 768 Kbits/s
FSC
DCL
: 8 KHz
: 1536 KHz
Fig 7.8 GCI Mode Channel Structure
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