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參數(shù)資料
| 型號(hào)： | MT9072AB |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| 中文描述： | DATACOM, FRAMER, PQFP208 |
| 封裝： | 28 X 28 MM, 1.40 MM HEIGHT, MS-026BJB, LQFP-208 |
| 文件頁(yè)數(shù)： | 138/275頁(yè) |
| 文件大小： | 3738K |
| 代理商： | MT9072AB |
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MT9072
Data Sheet
138
Zarlink Semiconductor Inc.
17.1.6 Interrupt Status Registers (Y30 - Y3F) Bit Functions
Interrupt status register bit functions are shown in Tables 105 to 108.
17.1.7 Interrupt Mask Registers (Y40 - Y4F) Bit Functions
Tables 109 to 115 describe the bit functions of each of the Interrupt Mask Registers in the MT9072. Each register
is repeated for each of the 4 framers (not the Interrupt Vector Mask). Framer 0 is addressed with Y=0, Framer 1
with Y=1, Framer 2 with Y=2. and Framer 7 with Y=7 (where Y represents the 4 most significant address bits (MSB)
A11 A10 A9 A8). In addition, a simultaneous write to all 8 Framers is possible by setting the A11 address to Y=8
(1000). A (0) or (1) in the “Name” column of these tables indicates the state of the data bits after a hard reset (the
RESET pin is toggled from zero to one), or a software reset (the RST bit in control register address YF1 is toggled
from one to zero) or a T1E0 write to the Global Control Register bit 15.
Bit
Name
Functional Description
15-9
#
not used.
8
GAI
Go Ahead Interrupt.
Indicates a go-ahead pattern (01111111) was detected by the
HDLC receiver. This bit is reset after a read of Y33 or Y23.
7
EOPDI
End of Packet Data Interrupt.
This bit is set when an end of packet (EOP) byte was
written into the RX FIFO by the HDLC receiver. This can be in the form of a flag, an abort
sequence or as an invalid packet. This bit is reset after a read of Y33 or Y23.
6
TEOPI
Transmit End of Packet Interrupt.
This bit is set when the transmitter has finished
sending the closing flag of a packet or after a packet has been aborted. This bit is reset
after a read of Y33 or Y23.
5
EOPRI
End of Packet Receive Fifo Interrupt.
This bit is set when the byte about to be read
from the RX FIFO is the last byte of the packet. It is also set if the Rx FIFO is read and
there is no data in it.This bit is reset after a read of Y33 or Y23.
4
TXFLI
Transmit FIFO Low Interrupt.
This bit is set when the Tx FIFO is emptied below the 16
byte low threshold level.This bit is reset after a read of Y33 or Y23.
3
FAI
Frame Abort: Transmit Interrupt.
This bit (FA) is set when a frame abort is received
during packet reception. It must be received after a minimum number of bits have been
received (26) otherwise it is ignored. This bit is reset after a read of Y33 or Y23.
2
TXUNDERI
Transmit Elastic Buffer Empty Interrupt.
If high it Indicates that a read by the
transmitter was attempted on an empty Tx FIFO. This bit is reset after a read of Y33 or
Y23.
1
RXFFI
Receive FIFO is filled above Threshold Interrupt.
This bit is set when the Rx FIFO is
filled above the 16 byte full threshold level. This bit is reset after a read of Y33 or Y23.
0
RXOVFLI
Receive Fifo Overflow Interrupt
This bit Indicates that the 32 byte RX FIFO overflowed
(i/.e. an attempt to write to a 32 byte full RX FIFO). The HDLC will always disable the
receiver once the receive overflow has been detected. The receiver will be re-enabled
upon detection of the next flag, but will overflow again unless the RX FIFO is read. This
bit is reset after a read of Y33 or Y23.
Table 104 - HDLC Interrupt Status Register(Y33) (T1)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MT9072AV | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| MT90820 | Large Digital Switch |
| MT90820AL | Large Digital Switch |
| MT90820AL1 | Large Digital Switch |
| MT90823AL1 | 3V Large Digital Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MT9072AV | 制造商:Microsemi Corporation 功能描述:FRAMER E1/J1/T1 3.3V 256BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 256BGA - Trays |
| MT9072AV2 | 制造商:Microsemi Corporation 功能描述:FRAMER E1/J1/T1 3.3V 220BGA - Trays 制造商:Zarlink Semiconductor Inc 功能描述:FRAMER E1/J1/T1 3.3V 220BGA - Trays |
| MT90732 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS E2/E3 Framer (E2/E3F) |
| MT90732AP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS E2/E3 Framer (E2/E3F) |
| MT90733 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS DS3 Framer (DS3F) |
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