PCI2040 datasheet(43/79 Pages) TI

43 / 79 page

4–11

4.18 Interrupt Pin Register

The interrupt pin register tells which interrupt the device uses. This register is hardwired to 01h in the PCI2040 to

indicate that INTA will be used.

Bit

Name

Interrupt pin

Type

Default

Interrupt pin

Type:

Read-only

Offset:

3Dh

Default:

01h

4.19 MIN_GNT Register

This register specifies the length of the burst period for the device needs in 0.25

µsec units. The default value for this

Bit

Name

MIN_GNT

Type

Default

MIN_GNT

Type:

Read-only

Offset:

3Eh

Default:

00h

4.20 MAX_LAT Register

This register specifies how often the device needs to gain access to the PCI bus in 0.25

µsec units. The default value

for this register is 00h as the PCI2040 is a target-only device.

Bit

Name

MAX_LAT

Type

Default

MAX_LAT

Type:

Read-only

Offset:

3Fh

Default:

00h

PCI2040 Datasheet(PDF) 43 Page - Texas Instruments

PCI2040 Datasheet(HTML) 43 Page - Texas Instruments

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