1 1.5 andvar /* $NetBSD: if_elreg.h,v 1.5 2022/05/20 19:34:23 andvar Exp $ */ 2 1.4 cgd 3 1.2 cgd /* 4 1.2 cgd * Copyright (c) 1994, Matthew E. Kimmel. Permission is hereby granted 5 1.1 hpeyerl * to use, copy, modify and distribute this software provided that both 6 1.1 hpeyerl * the copyright notice and this permission notice appear in all copies 7 1.1 hpeyerl * of the software, derivative works or modified versions, and any 8 1.1 hpeyerl * portions thereof. 9 1.1 hpeyerl */ 10 1.1 hpeyerl 11 1.2 cgd /* 12 1.2 cgd * 3COM Etherlink 3C501 Register Definitions 13 1.2 cgd */ 14 1.2 cgd 15 1.2 cgd /* 16 1.2 cgd * I/O Ports 17 1.2 cgd */ 18 1.2 cgd #define EL_RXS 0x6 /* Receive status register */ 19 1.2 cgd #define EL_RXC 0x6 /* Receive command register */ 20 1.2 cgd #define EL_TXS 0x7 /* Transmit status register */ 21 1.2 cgd #define EL_TXC 0x7 /* Transmit command register */ 22 1.2 cgd #define EL_GPBL 0x8 /* GP buffer ptr low byte */ 23 1.2 cgd #define EL_GPBH 0x9 /* GP buffer ptr high byte */ 24 1.2 cgd #define EL_RBL 0xa /* Receive buffer ptr low byte */ 25 1.2 cgd #define EL_RBC 0xa /* Receive buffer clear */ 26 1.2 cgd #define EL_RBH 0xb /* Receive buffer ptr high byte */ 27 1.2 cgd #define EL_EAW 0xc /* Ethernet address window */ 28 1.5 andvar #define EL_AS 0xe /* Auxiliary status register */ 29 1.5 andvar #define EL_AC 0xe /* Auxiliary command register */ 30 1.2 cgd #define EL_BUF 0xf /* Data buffer */ 31 1.1 hpeyerl 32 1.1 hpeyerl /* Receive status register bits */ 33 1.2 cgd #define EL_RXS_OFLOW 0x01 /* Overflow error */ 34 1.2 cgd #define EL_RXS_FCS 0x02 /* FCS error */ 35 1.2 cgd #define EL_RXS_DRIB 0x04 /* Dribble error */ 36 1.2 cgd #define EL_RXS_SHORT 0x08 /* Short frame */ 37 1.2 cgd #define EL_RXS_NOFLOW 0x10 /* No overflow */ 38 1.1 hpeyerl #define EL_RXS_GOOD 0x20 /* Received good frame */ 39 1.2 cgd #define EL_RXS_STALE 0x80 /* Stale receive status */ 40 1.1 hpeyerl 41 1.1 hpeyerl /* Receive command register bits */ 42 1.2 cgd #define EL_RXC_DISABLE 0x00 /* Receiver disabled */ 43 1.2 cgd #define EL_RXC_DOFLOW 0x01 /* Detect overflow */ 44 1.2 cgd #define EL_RXC_DFCS 0x02 /* Detect FCS errs */ 45 1.2 cgd #define EL_RXC_DDRIB 0x04 /* Detect dribble errors */ 46 1.2 cgd #define EL_RXC_DSHORT 0x08 /* Detect short frames */ 47 1.2 cgd #define EL_RXC_DNOFLOW 0x10 /* Detect frames w/o overflow ??? */ 48 1.2 cgd #define EL_RXC_AGF 0x20 /* Accept Good Frames */ 49 1.2 cgd #define EL_RXC_PROMISC 0x40 /* Promiscuous mode */ 50 1.2 cgd #define EL_RXC_ABROAD 0x80 /* Accept address, broadcast */ 51 1.2 cgd #define EL_RXC_AMULTI 0xc0 /* Accept address, multicast */ 52 1.1 hpeyerl 53 1.1 hpeyerl /* Transmit status register bits */ 54 1.2 cgd #define EL_TXS_UFLOW 0x01 /* Underflow */ 55 1.2 cgd #define EL_TXS_COLL 0x02 /* Collision */ 56 1.2 cgd #define EL_TXS_COLL16 0x04 /* Collision 16 */ 57 1.2 cgd #define EL_TXS_READY 0x08 /* Ready for new frame */ 58 1.1 hpeyerl 59 1.1 hpeyerl /* Transmit command register bits */ 60 1.2 cgd #define EL_TXC_DUFLOW 0x01 /* Detect underflow */ 61 1.2 cgd #define EL_TXC_DCOLL 0x02 /* Detect collisions */ 62 1.2 cgd #define EL_TXC_DCOLL16 0x04 /* Detect collision 16 */ 63 1.2 cgd #define EL_TXC_DSUCCESS 0x08 /* Detect success */ 64 1.1 hpeyerl 65 1.5 andvar /* Auxiliary status register bits */ 66 1.2 cgd #define EL_AS_RXBUSY 0x01 /* Receive busy */ 67 1.2 cgd #define EL_AS_DMADONE 0x10 /* DMA finished */ 68 1.2 cgd #define EL_AS_TXBUSY 0x80 /* Transmit busy */ 69 1.1 hpeyerl 70 1.5 andvar /* Auxiliary command register bits */ 71 1.2 cgd #define EL_AC_HOST 0x00 /* System bus can access buffer */ 72 1.2 cgd #define EL_AC_IRQE 0x01 /* IRQ enable */ 73 1.2 cgd #define EL_AC_TXBAD 0x02 /* Transmit frames with bad FCS */ 74 1.2 cgd #define EL_AC_TXFRX 0x04 /* Transmit followed by receive */ 75 1.2 cgd #define EL_AC_RX 0x08 /* Receive */ 76 1.2 cgd #define EL_AC_LB 0x0c /* Loopback */ 77 1.2 cgd #define EL_AC_DRQ 0x20 /* DMA request */ 78 1.2 cgd #define EL_AC_RIDE 0x40 /* DRQ and IRQ enabled */ 79 1.2 cgd #define EL_AC_RESET 0x80 /* Reset */ 80 1.1 hpeyerl 81 1.1 hpeyerl /* Packet buffer size */ 82 1.2 cgd #define EL_BUFSIZ 2048 83
Indexes created Thu Oct 02 14:10:14 GMT 2025