Entity: Sgmii88E1111Mdio
- File: Sgmii88E1111Mdio.vhd
Diagram
Description
Company : SLAC National Accelerator Laboratory
Description: Controller for the Marvell 88E1111 PHY
This file is part of 'SLAC Firmware Standard Library'. It is subject to the license terms in the LICENSE.txt file found in the top-level directory of this distribution and at: https://confluence.slac.stanford.edu/display/ppareg/LICENSE.html. No part of 'SLAC Firmware Standard Library', including this file, may be copied, modified, propagated, or distributed except according to
the terms contained in the LICENSE.txt file.
Generics
| Generic name | Type | Value | Description |
|---|---|---|---|
| TPD_G | time | 1 ns | |
| DIV_G | natural range 1 to natural'high | 1 | half-period of MDC in clk cycles |
| PHY_G | natural range 0 to 31 | 7 |
Ports
| Port name | Direction | Type | Description |
|---|---|---|---|
| clk | in | sl | clock and reset |
| rst | in | sl | |
| initDone | out | sl | misc |
| speed_is_10_100 | out | sl | |
| speed_is_100 | out | sl | |
| linkIsUp | out | sl | |
| mdc | out | sl | MDIO interface |
| mdo | out | sl | |
| mdi | in | sl | |
| linkIrq | in | sl | link status change interrupt |
Signals
| Name | Type | Description |
|---|---|---|
| r | RegType | |
| rin | RegType | |
| hdlrDone | sl | |
| args | Slv16Array(0 to NUM_READ_ARGS_C - 1) |
Constants
| Name | Type | Value | Description |
|---|---|---|---|
| P_INIT_C | MdioProgramArray | ( mdioWriteInst(PHY_G, 22, X"0001", false), -- select page 1 mdioWriteInst(PHY_G, 0, X"0140", false), -- disable ANEG on SMII side mdioWriteInst(PHY_G, 22, X"0000", false), -- select page 0 mdioWriteInst(PHY_G, 4, X"0140", false), -- advertise 10/100 FD only mdioWriteInst(PHY_G, 9, X"0200", false), -- advertise 1000 FD only mdioWriteInst(PHY_G, 18, X"0c00", false), -- enable link status and ANEG IRQ mdioWriteInst(PHY_G, 0, X"1340", true) -- restart copper ANEG ) |
|
| REG19_IDX_C | natural | 0 | |
| REG17_IDX_C | natural | 1 | |
| P_HDLR_C | MdioProgramArray | ( REG19_IDX_C => mdioReadInst(PHY_G, 19, false), -- read/ack/clear interrupt REG17_IDX_C => mdioReadInst(PHY_G, 17, true) -- read current speed and link status ) |
IRQ Handler sequence: 1) read back and clear interrupts (reading does clear them) 2) obtain current link status and speed |
| NUM_READ_ARGS_C | natural | mdioProgNumReadTransactions(P_HDLR_C) | |
| REG_INIT_C | RegType | ( s10_100 => '0', s100 => '0', linkIsUp => '0' ) |
Types
| Name | Type | Description |
|---|---|---|
| RegType |
Processes
- COMB: ( args, hdlrDone, r )
- SEQ: ( clk )
Instantiations
- U_MdioLinkIrqHandler: surf.MdioLinkIrqHandler