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參數(shù)資料
| 型號： | MK50H27Q25 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 51M bps, SERIAL COMM CONTROLLER, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁數(shù)： | 33/58頁 |
| 文件大?。?/td> | 621K |
| 代理商： | MK50H27Q25 |
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4.3.3 Status Buffer
FIELD
DESCRIPTION
BIBT
The value of the last BIB transmitted.
BSNT
The value of the last BSN transmitted. 0
≤ BSNT ≤ 127.
BIBR
The value of the last BIB received.
BSNR
The value of the last BSN received.
0
≤ BSNR ≤ 127.
FIBT
The value of the last FIB transmitted.
FSNT/FSNC
Under normal operation this is the value of the last FSN transmitted.
If a UPRIM 13 is to be issued in CSR1 then the FSNC value to be
read by the MK50H27 must be placed here by the host.
0
≤ FSNT/FSNC ≤ 127.
FIBR
The value of the last FIB received.
FSNR
The value of the last FSN received. 0
≤ FSNR ≤ 127.
RFSN
The value of the oldest unacknowledged FSNT in the retransmission
buffer. 0
≤ RFSN ≤ 127.
FSNX
The value of the next expected FSN to be received. 0
≤ FSNX ≤ 127.
TIDX
Index to the descriptor of the current transmission buffer.
RIDX
Index to the descriptor of the current receive buffer.
RTIDX
Index to the first descriptor of the retransmission buffer.
PHASE
Indicates the current phase of operation for the device.
0:Power Off.
2:Out of Service.
4: Initial alignment not aligned.
5:Initial alignment aligned.
6:Initial alignment proving.
7:Alignment not ready.
8:Alignment ready.
9:In Service.
10:Processor outage.
11:Transparent mode.
12:Memory Error.
TX STATE
Indicates the current state of the transmitter.
0: The transmitter is waiting to transmit a Signal Unit.
1:A Signal Unit is currently being transmitted.
2:A Signal Unit transmission has completed.
RX STATE
Indicates the current state of the receiver.
0:The receiver is expecting the beginning of a Signal Unit.
1:A MSU is being transferred to the receive buffer(s).
2:End of frame detected.
3:Receive data being ignored.
4:Buffer chaining requested.
FIRMWARE RELEASE
Indicates the release number of the firmware within the MK50H27.
NUMBER
NUMBER OF OCTETS
This value represents the lower two bytes of the total number of octets
RETRANSMITTED
retransmitted. The number of octets retransmitted statistics counter
represents the upper two bytes of the total number of octets re-
transmitted.
This two byte status buffer value together with the two
byte error counter value provide a 32 bit value for the total num-
ber of octets retransmitted.
RESERVED
Must be programmed as ZEROES.
MK50H27
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