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AM79C978VC/W 数据表(PDF) 217 Page - Advanced Micro Devices

部件名 AM79C978VC/W
功能描述  Single-Chip 1/10 Mbps PCI Home Networking Controller
PDF  261 Pages
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制造商  AMD [Advanced Micro Devices]
网页  http://www.amd.com
标志 AMD - Advanced Micro Devices

AM79C978VC/W 数据表(HTML) 217 Page - Advanced Micro Devices

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Am79C978
217
Am79C978 Programmable Registers (Continued)
Table 94.
Bus Configuration Registers
RAP Addr
Register
Contents
0
MSRDA
Programs width of DMA read signal (DEFAULT = 5)
1
MSWRA
Programs width of DMA write signal (DEFAULT = 5)
2
MC
Miscellaneous Configuration bits: (DEFAULT = 2)
8000
--
4000
--
2000
--
1000
--
0800
--
0400
--
0200
--
0100
APROMWE
0080
INITLEVEL
0040
--
0020
--
0010
--
0008
EADISEL
0004
--
0002
ASEL 0001
--
4
LED0
Programs the function and width of the LED0 signal. (DEFAULT = 00C0)
8000
LEDOUT
4000
LEDPOL
2000
LEDDIS
1000
100E
0800
--
0400
--
0200
MPSE
0100
FDLSE
0080
PSE
0040
LNKSE
0020
RCVME
0010
XMTE
0008
POWER
0004
RCVE
0002
SPEED
0001
COLE
5
LED1
Programs the function and width of the LED1 signal. (DEFAULT = 0084)
8000
LEDOUT
4000
LEDPOL
2000
LEDDIS
1000
100E
0800
--
0400
--
0200
MPSE
0100
FDLSE
0080
PSE
0040
LNKSE
0020
RCVME
0010
XMTE
0008
POWER
0004
RCVE
0002
SPEED
0001
COLE
6
LED2
Programs the function and width of the LED2 signal. (DEFAULT = 0088)
8000
LEDOUT
4000
LEDPOL
2000
LEDDIS
1000
100E
0800
--
0400
--
0200
MPSE
0100
FDLSE
0080
PSE
0040
LNKSE
0020
RCVME
0010
XMTE
0008
POWER
0004
RCVE
0002
SPEED
0001
COLE
7
LED3
Programs the function and width of the LED3 signal. (DEFAULT = 0090)
8000
LEDOUT
4000
LEDPOL
2000
LEDDIS
1000
100E
0800
--
0400
--
0200
MPSE
0100
FDLSE
0080
PSE
0040
LNKSE
0020
RCVME
0010
XMTE
0008
POWER
0004
RCVE
0002
SPEED
0001
COLE
9
FDC
Full-Duplex Control. (DEFAULT= 0000)
8000
--
4000
--
2000
--
1000
--
0800
--
0400
--
0200
--
0100
--
0080
--
0040
--
0020
--
0010
--
0008
--
0004
FDRPAD
0002
--
0001
FDEN
16
IOBASEL
I/O Base Address Lower
17
IOBASEU
I/O Base Address Upper
18
BSBC
Burst Size and Bus Control (DEFAULT = 2101)
8000
ROMTMG3
4000
ROMTMG2
2000
ROMTMG1
1000
ROMTMG0
0800
NOUFLO
0400
--
0200
MEMCMD
0100
EXTREQ
0080
DWIO
0040
BREADE
0020
BWRITE
0010
--
0008
--
0004
--
0002
--
0001
--
19
EECAS
EEPROM Control and Status (DEFAULT = 0002)
8000
PVALID
4000
PREAD
2000
EEDET
1000
--
0800
--
0400
--
0200
--
0100
--
0080
--
0040
--
0020
--
0010
EEN
0008
--
0004
ECS
0002
ESK
0001
EDI/EDO
20
SWSTYLE
Software Style (DEFAULT = 0000, maps to CSR 58)



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