參數(shù)資料
型號: DS2154L
廠商: Maxim Integrated Products
文件頁數(shù): 37/87頁
文件大小: 0K
描述: IC TXRX E1 1CHIP 5V ENH 100-LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
產(chǎn)品變化通告: Product Discontinuation 20/Feb/2012
標準包裝: 90
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: E1
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應(yīng)商設(shè)備封裝: 100-LQFP(14x14)
包裝: 管件
產(chǎn)品目錄頁面: 1429 (CN2011-ZH PDF)
DS2154
42 of 87
7 DS0 MONITORING FUNCTION
The DS2154 can monitor one DS0 64kbps channel in the transmit direction and one DS0 channel in the
receive direction at the same time. In the transmit direction, the user determines which channel is to be
monitored by properly setting the TCM0 to TCM4 bits in the CCR4 register. In the receive direction, the
RCM0 to RCM4 bits in the CCR5 register need to be properly set. The DS0 channel pointed to by the
TCM0 to TCM4 bits will appear in the Transmit DS0 Monitor (TDS0M) register and the DS0 channel
pointed to by the RCM0 to RCM4 bits will appear in the Receive DS0 (RDS0M) register.
The TCM4 to TCM0 and RCM4 to RCM0 bits should be programmed with the decimal decode of the
appropriate E1 channel. For example, if DS0 channel 6 (time slot 5) in the transmit direction and DS0
channel 15 (time slot 14) in the receive direction needed to be monitored, then the following values would
be programmed into CCR4 and CCR5:
TCM4 = 0
RCM4 = 0
TCM3 = 0
RCM3 = 1
TCM2 = 1
RCM2 = 1
TCM1 = 0
RCM1 = 1
TCM0 = 1
RCM0 = 0
CCR4: DS0 MONITORING FUNCTION (Address = A8 Hex)
(Repeated here from Section 4 for convenience.)
(MSB)
(LSB)
RLB
LLB
LIAIS
TCM4
TCM3
TCM2
TCM1
TCM0
SYMBOL
POSITION
NAME AND DESCRIPTION
RLB
CCR4.7
Remote Loopback. See Section 4 for details.
LLB
CCR4.6
Local Loopback. See Section 4 for details.
LIAIS
CCR4.5
Line Interface AIS Generation Enable. See Section 4 for
details.
TCM4
CCR4.4
Transmit Channel Monitor Bit 4. MSB of a channel decode
that determines which transmit channel data will appear in the
TDS0M register.
TCM3
CCR4.3
Transmit Channel Monitor Bit 3.
TCM2
CCR4.2
Transmit Channel Monitor Bit 2.
TCM1
CCR4.1
Transmit Channel Monitor Bit 1.
TCM0
CCR4.0
Transmit Channel Monitor Bit 0. LSB of the channel decode
that determines which transmit DS0 channel data will appear in
the TDS0M register.
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