參數(shù)資料
型號: DS21Q50L
廠商: Maxim Integrated Products
文件頁數(shù): 49/87頁
文件大?。?/td> 0K
描述: IC TRANSCEIVER E1 QUAD 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: 收發(fā)器
接口: E1
電路數(shù): 4
電源電壓: 3.14 V ~ 3.47 V
電流 - 電源: 230mA
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: AIS 警報檢測器和發(fā)生器,回送功能,PRBS 發(fā)生器 / 檢測器,遠(yuǎn)程檢測器和發(fā)生器
DS21Q50
53 of 87
15.
USER-CONFIGURABLE OUTPUTS
There are two user-configurable output pins for each transceiver, OUTA and OUTB. These pins can be
programmed to output various clocks, alarms for line monitoring, logic 0 and 1 levels to control external
circuitry, or access transmit data between the framer and transmit line interface unit. OUTA and OUTB
can be active low or active high when operating as clock and alarm outputs. OUTA is active high if
OUTAC.4 =1 and active low if OUTAC.3 = 0. OUTB is active high if OUTBC.4 = 1 and active low if
OUTBC.4 = 0 (Table 15-1). Mode 0000 is selected for controlling external circuitry. In this
configuration, the OUTA pin follows OUTAC.4 and the OUTB pin follows OUTBC.4.
The OUTAC register also contains a control bit for CMI operation. See Section 16 for details about CMI
operation.
Register Name:
OUTAC
Register Description:
OUTA Control Register
Register Address:
1A Hex
Bit
7
6
5
4
3
2
1
0
Name
TTLIE
CMII
CMIE
OA4
OA3
OA2
OA1
OA0
NAME
BIT
FUNCTION
TTLIE
7
TTL Input Enable. When this bit is set, the receiver can accept TTL positive and negative
data at the RTIP and RRING inputs. The data is clocked in on the falling edge of MCLK.
CMII
6
CMI Invert. See Section 17 for details.
0 = CMI input data not inverted
1 = CMI input data inverted
CMIE
5
CMI Enable. See Section 17 for details.
0 = CMI disabled
1 = CMI enabled
OA4
4
OUTA Control Bit 4. Inverts OUTA output.
OA3
3
OUTA Control Bit 3 (Table 15-1)
OA2
2
OUTA Control Bit 2 (Table 15-1)
OA1
1
OUTA Control Bit 1 (Table 15-1)
OA0
0
OUTA Control Bit 0 (Table 15-1)
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