參數(shù)資料
型號: DS21552L
廠商: Maxim Integrated Products
文件頁數(shù): 66/137頁
文件大?。?/td> 0K
描述: IC TXRX T1 1-CHIP 5V 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(biāo)準(zhǔn)包裝: 90
功能: 單芯片收發(fā)器
接口: E1,HDLC,J1,T1
電路數(shù): 1
電源電壓: 4.75 V ~ 5.25 V
電流 - 電源: 75mA
工作溫度: 0°C ~ 70°C
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: 托盤
包括: DSX-1 和 CSU 線路補(bǔ)償發(fā)生器,HDLC 控制器,帶內(nèi)回路代碼發(fā)生器和檢測器
DS21352/DS21552
34 of 137
TCR2: TRANSMIT CONTROL REGISTER 2 (Address=36 Hex)
(MSB)
(LSB)
TEST1
TEST0
TZBTSI
TSDW
TSM
TSIO
TD4YM
TB7ZS
SYMBOL
POSITION
NAME AND DESCRIPTION
TEST1
TCR2.7
Test Mode Bit 1 for Output Pins. See Table 6-2..
TEST0
TCR2.6
Test Mode Bit 0 for Output Pins. See Table 6-2.
TZBTSI
TCR2.5
Transmit Side ZBTSI Support Enable. Allows ZBTSI information to be input on
TLINK pin.
0 = ZBTSI disabled
1 = ZBTSI enabled
TSDW
TCR2.4
TSYNC Double–Wide. (note: this bit must be set to zero when TCR2.3=1 or when
TCR2.2=0)
0 = do not pulse double–wide in signaling frames
1 = do pulse double–wide in signaling frames
TSM
TCR2.3
TSYNC Mode Select. Selects frame or multiframe mode for the TSYNC pin. See the
timing in Section 21
0 = frame mode
1 = multiframe mode
TSIO
TCR2.2
TSYNC I/O Select.
0 = TSYNC is an input
1 = TSYNC is an output
TD4YM
TCR2.1
Transmit Side D4 Yellow Alarm Select.
0 = zeros in bit 2 of all channels
1 = a one in the S–bit position of frame 12
TB7ZS
TCR2.0
Transmit Side Bit 7 Zero Suppression Enable.
0 = no stuffing occurs
1 = Bit 7 force to a one in channels with all zeros
Table 6-2 OUTPUT PIN TEST MODES
TEST 1
TEST 0
EFFECT ON OUTPUT PINS
0
operate normally
0
1
force all output pins into 3–state (including all I/O pins and parallel port pins)
1
0
force all output pins low (including all I/O pins except parallel port pins)
1
force all output pins high (including all I/O pins except parallel port pins)
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