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| 型號(hào)： | CN8223EPF |
| 英文描述： | ATM/SONET TRANSCEIVER|CMOS|QFP|160PIN|PLASTIC |
| 中文描述： | 的ATM / SONET的收發(fā)器|的CMOS | QFP封裝| 160PIN |塑料 |
| 文件頁(yè)數(shù)： | 122/161頁(yè) |
| 文件大?。?/td> | 1865K |
| 代理商： | CN8223EPF |
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3.0 Registers
CN8223
3.7 Status Register Overview
ATM Transmitter/Receiver with UTOPIA Interface
3-36
Conexant
100046D
Set if an error is detected in the 6-bit payload length field of the cell trailer. This
event is meaningful only for AAL3/4 payloads that contain a payload length.
0x39
—
EVENT_STATUS (Event Interrupt Status Register)
The EVENT_STATUS register is located at address 0x39 and has receiver status conditions.
Bit
Field
Size
Name
Description
15
1
Receiver Hold Input
Indicates that an active-high input was received on the RCV_HLD input pin.
14
–
13
2
Reserved
Set to 0.
12
1
APS Event
Set when the received value of the K1 or K2 byte changes in the SONET frame.
11
1
TxUTOPIA Sync
Error
This error indicates that the transmit UTOPIA SOC from the host interface is out of
sync with the UTOPIA FIFO Pointers.
10
1
FIFO Port 3 Input
Parity Error
FIFO Port 3 parity error. This status bit and associated interrupt will be active only if
input parity checking is enabled in CONFIG_3.
9
1
FIFO Port 2 Input
Parity Error
FIFO Port 2 parity error. This status bit and associated interrupt will be active only if
input parity checking is enabled in CONFIG_3.
8
1
FIFO Port 1 Input
Parity Error
FIFO Port 1 parity error. This status bit and associated interrupt will be active only if
input parity checking is enabled in CONFIG_3.
7
1
FIFO Port 0 Input
Parity Error
FIFO Port 0 parity error. This status bit and associated interrupt will be active only if
input parity checking is enabled in CONFIG_3.
6
1
Idle Cells
Set if the header of an incoming cell matches the header value programmed in the
RX_IDLE and IDLE_MSK registers.
5
1
Non-matching Cells
Set if the header of an incoming cell does not match any of the header values
programmed in the HDR_VALx and HDR_MSKx registers.
4
1
Non-zero GFC
Set if the 4-bit GFC field of an incoming cell header is any value other than 0000.
3
1
Payload Length
Error
2
1
Payload CRC Error
Set if an error is detected in the 10-bit payload CRC of the cell trailer. This event is
meaningful only for AAL3/4 payloads that contain a payload CRC.
1
1
HEC Error-Not
Corrected
Set if an uncorrectable error is detected in the HEC octet of the cell header.
0
1
HEC
Error-Corrected
Set if an error is detected and corrected in the HEC octet of the cell header.
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