REV. 1.0.1 3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC AE15 STS1TXA_2_D0 TXHDLCDAT_2_0 TXGFCMSB_2 I/O TTL/ CMOS Transmit STS-1 " />
參數(shù)資料
型號： XRT94L31IB-L
廠商： Exar Corporation
文件頁數(shù)： 89/133頁
文件大小： 0K
描述： IC MAPPER DS3/E3/STS-1 504TBGA
標準包裝： 24
應用： 網(wǎng)絡切換
接口： 總線
電源電壓： 3.14 V ~ 3.47 V
封裝/外殼： 504-LBGA
供應商設備封裝： 504-TBGA（35x35）
包裝： 托盤
安裝類型： 表面貼裝
XRT94L31
59
REV. 1.0.1
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC
AE15
STS1TXA_2_D0
TXHDLCDAT_2_0
TXGFCMSB_2
I/O
TTL/
CMOS
Transmit STS-1 Telecom Bus Interface - Channel 2 - Input Data Bus
pin number 0/Transmit High-Speed HDLC Controller Input Interface
block - Channel 2 - Input Data Bus - Pin 0:
The function of this pin depends upon whether or not the STS-1 Telecom
Bus Interface, associated with Channel 2 is enabled.
If STS-1 Telecom Bus (Channel 2) has been enabled - Transmit STS-
1 Telecom Bus Interface - Input Data Bus pin number 0 -
STS1TXA_2_D0:
This input pin along with STS1TXA_D_2[7:1] functions as the Transmit
(Add) STS-1 Telecom Bus Interface - Input Data Bus for Channel 2. This
particular input pin functions as the LSB (Least Significant Bit) input pin
on the Transmit (Add) STS-1 Telecom Bus Interface - Input Data Bus.
The Transmit STS-1 Telecom Bus interface will sample and latch this pin
upon the falling edge of STS1TXA_CLK_2.
The LSB of any byte, which is being input into the STS-1 Transmit Tele-
com Bus Interface - Data Bus (for Channel 2) should be input via this
pin.
If the STS-1 Telecom Bus (associated with Channel 2) has been dis-
abled:
This input/output pin can function in either of the following roles, depend-
ing upon which mode the XRT94L31 has been configured to operate in,
as described below.
If the XRT94L31 has been configured to operate in the High-Speed
HDLC Controller over DS3/STS-3 Mode - Transmit High-Speed
HDLC Controller Input Interface Block - Data Bus Input pin # 0 -
Channel 2 - TXHDLCDAT_2_0:
In this mode, this input pin will function as Bit 0 (the LSB) within the
Transmit High-Speed HDLC Controller Input Interface block - Input Data
Bus (e.g., the TxHDLCDat_2[7:0] input pins).
The Transmit High-Speed HDLC Controller Input Interface block will pro-
vide the System-Side Terminal equipment with a byte-wide Transmit
High-Speed HDLC Controlller clock output signal (TxHDLCClk_2). The
Transmit High-Speed HDLC Controller Input Interface block will sample
the data residing on this input pin (along with the rest of the
TxHDLCDat_2[7:0] input pins) upon the rising edge of the TxHDLCClk_2
clock output signal.
TXGFCMSB_2 (Transmit GFC MSB Indicator - Channel 2)
This input pin will only function in this role if the XRT94L31 has been
configured to operate in the ATM UNI Mode.
PIN DESCRIPTION OF THE XRT94L31 (REV. B)
PIN #
SIGNAL NAME
I/O
TYPE
DESCRIPTION
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