AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 186

• Manufacturer Part Number: AM79C978
• Description: Single-Chip 1/10 Mbps PCI Home Networking Controller
• Manufacturer: Advanced Micro Devices

HPR26: HomePNA PHY Event Status (Register 26)
HPR27: HomePNA PHY Event Status (Register 27)
The Event Status register reports the state of each
event source. Any bit may be written and so facilitate
software-stimulated event testing.
HPR28: HomePNA PHY ISBI Control (Register 28)
186
15:10
Bits
Bits
15:8
Bits
15:8
7:4
7:0
7:0
9
8
3
2
1
0
PHY_Event Status
Reserved
RxPCOM
TxPCOM
Reserved
Packet Received
Packet Transmitted
Remote Command Received
Remote Command Sent
AID_CTRL
AID_INTERVAL
AID_ISBI
ISBI_CTRL
ISBI_SLOW
ISBI_FAST
Mnemonic
Mnemonic
Mnemonic
Table 58. HPR26: HomePNA PHY Event Status (Register 26)
Table 59. HPR27: HomePNA PHY Event Status (Register 27)
Table 60. HPR8: HomePNA PHY ISBI Control (Register 28)
This value defines the number of TCLKs (116.6
ns) separating AID symbols.
This value defines the number of TCLKs (116.6
ns) separating AID symbol 0.
This value defines the number of TCLKs (116.6
ns) separating data pulses for Symbol 0 in low
speed mode.
This value defines the number of TCLKs (116.6
ns) separating data pulses for Symbol 0 in high
speed mode.
Indicates a valid RxPCOM. An access to the
RxCOM MSB Register 21 will clear this bit.
Indicates a valid TxPCOM. Any access to the
TxCOM registers (Registers 18 and 19) will
clear this bit.
Reads will produce undefined results.
Status is cleared by writing a 0.
Status is cleared by writing a 0.
A valid remote command was received.
Status is cleared by writing a 0.
A remote command has been sent.
Status is cleared by writing a 0.
Am79C978
Description
Description
Description
Read/
Read/
Read/
Write
Write
Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
Default
Default
Default
Hex
Hex
Hex
2C
1C
14
40
0
0
0
0
0
0
0
Reset
Reset
Reset
Soft
Soft
Soft
2C
1C
14
40
0
0
0
0
0
0
0