参数资料
型号: XRT75R12DIB-L
厂商: Exar Corporation
文件页数: 41/133页
文件大小: 0K
描述: IC LIU E3/DS3/STS-1 12CH 420TBGA
标准包装: 40
类型: 线路接口装置(LIU)
驱动器/接收器数: 12/12
规程: DS3,E3,STS-1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 420-LBGA 裸露焊盘
供应商设备封装: 420-TBGA(35x35)
包装: 托盘
XRT75R12D
11
REV. 1.0.3
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
K25
M22
M23
M24
K26
L26
M26
N26
Addr0
Addr1
Addr2
Addr3
Addr4
Addr5
Addr6
Addr7
I
An eight bit direct address bus that specifies the source/destination register for a
Read or Write operation.
P22
R26
T26
U26
R25
R24
R23
R22
D0
D1
D2
D3
D4
D5
D6
D7
I/O
An eight bit bi-directional data bus that provides the data into the LIU for a Write
operation or the data out to the Host for a Read operation.
P26
INT
O
Interrupt Active Output (active low)
Normally, this output pin will be pulled "High". However, if the user enables
interrupts within the LIU, and if those conditions occur, the XRT75R12D will sig-
nal an interrupt from the Microprocessor by pulling this output pin "Low". The
Host Microprocessor must ascertain the source of the interrupt and service it.
Reading the source of the interupt will clear the flag and the INT pin will go back
high unless another interrupt has gone active.
NOTES:
1.
This pin will remain "Low" until the Interrupt has been serviced.
2.
This pin must be pulled "High" with a 3k
± 1% resistor.
N2
RESET
I
RESET Input
Pulsing this input "Low" causes the XRT75R12D to reset the contents of the on-
chip Command Registers to their default values. As a consequence, the
XRT75R12D will then also be operating in its default condition.
For normal operation this input pin should be at a logic "High".
NOTE: This input pin is internally pulled high.
MICROPROCESSOR PARALLEL INTERFACE -
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
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