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AM79C976 Datasheet(PDF) 246 Page - Advanced Micro Devices

Part # AM79C976
Description  PCnet-PRO??10/100 Mbps PCI Ethernet Controller
PDF  309 Pages
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Manufacturer  AMD [Advanced Micro Devices]
Direct Link  http://www.amd.com
Logo AMD - Advanced Micro Devices

AM79C976 Datasheet(HTML) 246 Page - Advanced Micro Devices

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246
Am79C976
8/01/00
P R E L I M INARY
Memory-Mapped Registers
Register
Offset, hex
Width, bits
Reset Value
Reset Type
Notes
AP_VALUE0
0A8
16
0
H
Auto-poll register 0 value
AP_VALUE1
0AA
16
0
H
Auto-poll register 1 value
AP_VALUE2
0AC
16
0
H
Auto-poll register 2 value
AP_VALUE3
0AE
16
0
H
Auto-poll register 3 value
AP_VALUE4
0B0
16
0
H
Auto-poll register 4 value
AP_VALUE5
0B2
16
0
H
Auto-poll register 5 value
AUTOPOLL0
88
16
8100
E,H
Auto-poll Register 1
AUTOPOLL1
8A
16
0
E,H
Auto-poll Register 2
AUTOPOLL2
8C
16
0
E,H
Auto-poll Register 3
AUTOPOLL3
8E
16
0
E,H
Auto-poll Register 4
AUTOPOLL4
90
16
0
E,H
Auto-poll Register 5
AUTOPOLL5
92
16
0
E,H
Auto-poll Register 6
BADR
120
64
0
H
Base Address of Receive Descriptor Ring
BADX
100
64
0
H
Base Address of Transmit Descriptor Ring
CHIPID
0F0
32
X262 8003
H
Chip ID. Read only
CHPOLLTIME
18A
16
0
E,H
Chain Poll Timer Register
CMD0
48
32
0
E,H
Command 0
CMD2
50
32
0
E,H
Command 2
CMD3
54
32
0
E,H
Command 3
CMD7
64
32
0
P
Command 7
CTRL0
68
32
0000 0900
E,H
Control 0
CTRL1
6C
32
0001 0001
E,H
Control 1
CTRL2
70
32
0000 0004
E,H
Control 2
CTRL3
74
32
0
H
Control 3
DATAMBIST
1A0
64
0
H
MBIST Access Register
DELAYED_INT
0C0
32
0
E,H
Delayed Interrupts Register
EEPROM_ACC
17C
16
0
H
EEPROM Access Register
FLASH_ADDR
198
32
0
H
Flash Address Register
FLASH_DATA
19C
16
0
H
Flash Data Register
FLOW
0C8
32
0
E,H
Flow Control Register
IFS1
18C
8
3C
E,H
Inter-Frame Spacing, Part 1 Register
INT0
38
32
0
Interrupt 0. Read only or write 1 to clear. All
bits cleared by H_RESET. Bits 0, 5, 6, & 8
also cleared when RUN is cleared.
INTEN0
40
32
0
E,H
Interrupt Enable 0.
IPG
18D
8
60
E,H
Inter-Packet Gap Register



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