MSC8122(2006) 查看數據表（PDF） - Freescale Semiconductor
零件编号
产品描述 (功能)
生产厂家
MSC8122 Datasheet PDF : 88 Pages
| |||
Direct Slave Interface, System Bus, Ethernet, and Interrupt Signals
Table 1-5. DSI, System Bus, Ethernet, and Interrupt Signals (Continued)
Signal Name
HD55
Type
Input/ Output Host Data Bus 55
Bit 55 of the DSI data bus.
Description
D55
Input/ Output System Bus Data 55
For write transactions, the bus master drives valid data on this line. For read transactions, the slave drives
valid data on this bus.
ETHTX_ER
Output
Ethernet Transmit Data Error
In MII mode only, indicates a transmit data error.
Reserved
HD56
Input
In RMII mode, this pin is reserved and can be left unconnected.
Input/ Output Host Data Bus 56
Bit 56 of the DSI data bus.
D56
Input/ Output System Bus Data 56
For write transactions, the bus master drives valid data on this line. For read transactions, the slave drives
valid data on this bus.
ETHRX_DV
Input
Ethernet Receive Data Valid
Indicates that the receive data is valid.
ETHCRS_DV
HD57
Input
Ethernet Carrier Sense/Receive Data Valid
In RMII mode, indicates that a carrier is detected and after the connection is established that the receive
data is valid.
Input/ Output Host Data Bus 57
Bit 57 of the DSI data bus.
D57
Input/ Output System Bus Data 57
For write transactions, the bus master drives valid data on this line. For read transactions, the slave drives
valid data on this bus.
ETHRX_ER
HD58
Input
Ethernet Receive Data Error
In MII and RMII modes, indicates a receive data error.
Input/ Output Host Data Bus 58
Bit 58 of the DSI data bus.
D58
Input/ Output System Bus Data 58
For write transactions, the bus master drives valid data on this line. For read transactions, the slave drives
valid data on this bus.
ETHMDC
HD59
Output
Ethernet Management Clock
In MII and RMII modes, used for the MDIO reference clock.
Input/ Output Host Data Bus 59
Bit 59 of the DSI data bus.
D59
Input/ Output System Bus Data 59
For write transactions, the bus master drives valid data on this line. For read transactions, the slave drives
valid data on this bus.
ETHMDIO
Input/ Output Ethernet Management Data
In MII and RMII modes, used for station management data input/output.
MSC8122 Technical Data, Rev. 13
Freescale Semiconductor
1-7
Share Link: 