Freescale Semiconductor, Inc.
Freescale Semiconductor, Inc.
TABLE B1-3. P2 - CPM Expansion - Interconnect Signals
Pin No. | Signal Name | Attribute | Description |
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C3 | FETHTXEN (PB29) | I/O, T.S. | |
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| (High) this line, to indicate data valid on the FETHTXD(3:0) lines. |
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| When the |
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| any available function of PB29. |
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C4 | FETHRXER (PB28) | I/O, T.S. | |
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| (High) by the LXT970, while the Ethernet port is enabled and |
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| FETHRXCK goes high, it indicates that the port is receiving |
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| invalid data symbols from the network. |
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| When the Ethernet port is disabled, this line is tristated and may |
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| be used for any available function of PB28. |
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C5 | FETHCOL (PB27) | I/O, T.S. | |
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| asserted (High) by the LXT970, while the ethernet port is enabled, |
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| it indicates a Collision state over the line. When the LXT970 is in |
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| When the Ethernet port is disabled, this line is tristated and may |
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| be used for any available function of the PB27. |
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C6 | FETHCRS (PB26) | I/O, T.S. | |
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| (High), while the Ethernet port is enabled and the LXT970 is in |
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| media are |
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| repeater operation, it indicates that the receive medium is non- |
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| idle. |
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| When the Ethernet port is disabled, this line may be used for any |
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| available function of PB26. |
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C7 | FETHTXD3 (PB25) | I/O, T.S. | Fast Ethernet Transmit Data (3:0). This is the MII transmit data |
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| bus. The MSC8101 drives these lines according to rising edge of |
C8 | FETHTXD2 (PB24) |
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| FETHTXCK. | ||
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| When the ethernet port is disabled, these lines may be used for |
C9 | FETHTXD1 (PB23) |
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| any available respective function. | ||
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C10 | FETHTXD0 (PB22) |
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C11 | FETHRXD0 (PB21) | I/O, T.S. | Fast Ethernet Receive Data (3:0). This is the MII receive data |
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| bus. The LXT970 drives these lines according to rising edge of |
C12 | FETHRXD1 (PB20) |
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| FETHRXCK. | ||
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| When the ethernet port is disabled, these lines are tristated and |
C13 | FETHRXD2 (PB19) |
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| may be used for any available respective parenthesized function. | ||
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C14 | FETHRXD3 (PB18) |
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MSC8101ADS RevB User’s Manual | MOTOROLA |
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