參數(shù)資料
型號: MC92602ZTA
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA196
封裝: 15 X 15 MM, 1.60 MM HEIGHT, 1 MM PITCH, MAPBGA-196
文件頁數(shù): 36/102頁
文件大?。?/td> 1581K
代理商: MC92602ZTA
MOTOROLA
Chapter 3. Receiver
3-11
Functional Description
Table 3-5 shows how data and status will appear on the receiver interface when in ten-bit
mode.
3.3.6.3
Receiver Interface Error Codes
The receiver’s status and data error conditions are coded on the RECV_x_ERR and
RECV_x_K signals (see Table 3-4 and Table 3-5).
When in byte mode (TBIE is low), E0, E1, K0, and K1 indicate the receiver operating status.
Table 3-6 describes the encoding and meaning of the status and error conditions for byte
mode.
When in ten-bit mode (TBIE is high), E0 and E1 indicate the receiver operating status.
Table 3-7 describes the encoding and meaning of the status and error conditions for TBI
mode.
Table 3-5. Ten-Bit Mode (TBIE = High) Receiver Outputs
Clock Edge
RECV_x_ERR
RECV_x_K
RECV_x_3
RECV_x_2
RECV_x_1
RECV_x_0
Rising
E0
Data bit 4
Data bit 3
Data bit 2
Data bit 1
Data bit 0 (LSB)
Falling
E1
Data bit 9 (MSB)
Data bit 8
Data bit 7
Data bit 6
Data bit 5
Table 3-6. Receiver Interface Error Codes (Byte Interface, TBIE = Low)
E0
E1
K0
K1
Priority
Description
Low
Don’t care
8
Normal operation, valid data character received.
Low
High
Low
7
Normal operation, valid control character received.
Low
High
6
Normal operation, valid idle (K28.5) character received.
Low
High
Low
4
Code error: The 8B/10B decoder detected an illegal
character.
Low
High
Low
High
5
Disparity error: The 8B/10B decoder detected a disparity
error.
Low
High
Low
3
Underrun: The receiver interface synchronization logic
detected an underrun condition. Data has been repeated.
Low
High
3
Overrun: The receiver interface synchronization logic
detected an overrun condition. Data has been dropped.
High
Low
Don’t care
1
Not byte sync: The receiver is in start-up or has lost byte
alignment and is searching for alignment.
High
Don’t care
2
Not word sync: The receiver is byte synchronized but has
not achieved or has lost word synchronization and is
searching for synchronization.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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