DS33Z41 Quad IMUX Ethernet Mapper
Register Name: |
| GL.CON1 |
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Register Description: |
| Connection Register for Ethernet Interface 1 |
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Register Address: |
| 0Eh |
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Bit # | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
Name | — | — |
| — | — | — | — | — | LINE1[0] |
Default | 0 | 0 |
| 0 | 0 | 0 | 0 | 0 | 1 |
Bit 0: LINE1[0]. This bit is preserved to provide software compatibility with multiport devices. The LINE1[0] bit selects the Ethernet port that is to be connected to the Serial Interface. Note that bidirectional connection is assumed between the Serial and Ethernet Interfaces. The connection register and corresponding queue size must be defined for proper operation. Writing a 0 to this register will disconnect the connection. When a connection is disconnected, “1”s are sourced to the Serial Interface transmit and to the HDLC receiver and the clocks to the HDLC transmitter/receiver are disabled.
Register Name: |
| GL.C1QPR |
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Register Description: |
| Connection 1 Queue Pointer Reset |
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Register Address: |
| 12h |
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Bit # | 7 | 6 | 5 |
| 4 | 3 |
| 2 | 1 | 0 |
Name | — | — | — |
| — | C1MRPRR |
| C1HWPRR | C1MHPR | C1HRPR |
Default | 0 | 0 | 0 |
| 0 | 0 |
| 0 | 0 | 0 |
Bit 3: MAC Read Pointer Reset (C1MRPR). Setting this bit to 1 resets the receive queue read pointer for connection 1. This queue pointer must be reset after a disconnect and before a connection. The user must clear the bit before subsequent reset operations.
Bit 2: HDLC Write Pointer Reset (C1HWPR). Setting this bit to 1 resets the receive queue write pointer for connection 1. This queue pointer must be reset after a disconnect and before a connection. The user must clear the bit before subsequent reset operations.
Bit 1: HDLC Read Pointer Reset (C1MHPR). Setting this bit to 1 resets the transmit queue read pointer for connection 1. This queue pointer must be reset after a disconnect and before a connection. The user must clear the bit before subsequent reset operations.
Bit 0: MAC Transmit Write Pointer Reset (C1HRPR). Setting this bit to 1 resets the transmit queue write pointer for connection 1. This queue pointer must be reset after a disconnect and before a connection. The user must clear the bit before subsequent reset operations.
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