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參數(shù)資料
| 型號： | MC68HC58FN |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 80/102頁 |
| 文件大?。?/td> | 700K |
| 代理商： | MC68HC58FN |
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MC68HC58
CONTROL AND STATUS CODES
MOTOROLA
TECHNICAL DATA
5-13
5.4.3.3 Transmitter Lost Arbitration
This value indicates that the transmitter lost contention, or an RxFIFO buffer overrun
occurred. If overrun occurred, transmitter may not have been arbitrated against, and
transmission may not have stopped.
5.4.3.4 Transmitter Successful
This value indicates that a frame transmitted successfully. Frame originated from this
node.
5.4.4 IFR — In-Frame Response Bit
This bit indicates whether or not a frame is an IFR.
0 = Not an IFR
1 = IFR
5.4.5 IFRC — In-Frame Response CRC Bit
This bit indicates whether or not an IFR has an appended cyclic redundancy check.
0 = IFR without CRC
1 = IFR with CRC
5.4.6 ERRC[1:0] — Error Code Field
This bit field is used in conjunction with the error flag. It indicates which errors were
detected. Errors are reported in precedence order; the higher the ERRC value, the
higher the priority. If any of these error conditions are detected, a pending EOD re-
sponse frame (IFR) is not sent. Table 5-8 shows the ERRC encoding field.
5.4.6.1 CRC Error
This value indicates that the cyclic redundancy check is incorrect or that a receiver
overrun has occurred.
5.4.6.2 Incomplete Byte Error
This value indicates that an incorrect modulus eight count occurred during reception
of this frame, and that an incomplete byte was received.
Table 5-8 ERRC Field Encoding
Value
Description
00
CRC error
01
Incomplete byte
10
Bit timing error
11
Break
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