AX88140AP ETC, AX88140AP Datasheet - Page 19

• Manufacturer Part Number: AX88140AP
• Description: Fast Ethernet MAC Controller
• Manufacturer: ETC

3.2.5 Configuration Base I/O Address Register (CBIO)
3.2.6 Configuration Base Memory Address Register (CBMA)
3.2.7 Expansion ROM Base Address Register (CBER)
3.2.8 Configuration Interrupt Register (CSIT)
31:7
6:1
0
31:24
23:16
15:8
7:0
FIELD
FIELD
FIELD
FIELD
31:10
31:7
6:1
9:1
0
0
AX88140A
Tab - 11 CBMA Configuration Base Memory Address Register Description
R/W
R
R
R
R
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Tab - 10 CBIO Configuration Base I/O Address Register Description
Tab - 12 CBER Expansion ROM Base Address Register Description
R
R
R
Tab - 13 CSIT Configuration Interrupt Register Description
Configuration Base I/O Address : Defines the address assignment mapping of AX88140A‘s regs.
This field value is 0 when read
I/O Space Indicator : Determines that the register maps into the I/O space. The value in this field is 1.
Configuration Base Memory Address : Defines the address assignment mapping of AX88140A‘s regs.
This field value is 0 when read
Memory Space Indicator : Determines that the register maps into the memory space. The value in this
field is 0.
Expansion ROM Base Address
This field value is 0 when read
Expansion ROM Enable Bit : Active high
MAX_LAT : time unit is equal to 0.25 microsecond.(28H)
MIN_GNT : Time unit is equal to 0.25 microsecond.(14H)
Interrupt Pin : The AX88140A uses INTA# and the read value is (01H).
Interrupt Line : The BIOS writes the routing information into this field.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
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