Compaq Tru64 UNIX, Installation Manual

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8
Defines the offset for the free transmit bytes register.
2.6 Window 4 Diagnostic Register Offset Definitions
The window 4 operational registers include such registers as the media type
and status register and the network diagnostic port register, as shown in
Figure 2–4.
Figure 2–4: Window 4 Diagnostic Registers
Register
Media Type and Status Register
ZK-1270U-AI
Constant
W4_MEDIA
Network Diagnostic and
Status Register
W4_NET
The following code shows the definitions for the window 4 diagnostic
registers:
#define W4_MEDIA 0xa 1
enum w4_media { 2
MD_TPE =0x8000,
MD_COAXE =0x4000,
MD_RES1 =0x2000,
MD_SQE =0x1000,
MD_VLB =0x0800,
MD_PRD =0x0400,
MD_JAB =0x0200,
MD_UNSQ =0x0100,
MD_LBE =0x0080,
MD_JABE =0x0040,
MD_CS =0x0020,
MD_COLL =0x0010,
MD_SQEE =0x0008,
MD_NCRC =0x0004
};
#define W4_NET
0x6 3
enum w4_net { 4
ND_EXT =0x8000,
ND_ENDEC =0x4000,
ND_ECL =0x2000,
ND_LOOP =0x1000,
ND_TXE =0x0800,
ND_RXE =0x0400,
ND_TXB =0x0200,
ND_TXRR =0x0100,
ND_STATE =0x0080,
ND_REV =0x003e,
ND_LOW =0x0001
};
1
Defines the offset for the media type and status register.
Defining Device Register Offsets 2–11