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4-14 Registers
Register: 0x3D
Interrupt Pin
Read Only
IP Interrupt Pin [7:0]
This register indicates which interrupt pin the device
uses. Its value is set to 0x01 for the INTA/ signal.
Register: 0x3E
Min_Gnt
Read Only
MG MIN_GNT [7:0]
This register is used to specify the desired settings for
latency timer values. Min_Gnt is used to specify how long
a burst period the device needs. The value specified in
this register is in units of 0.25 microseconds. The
LSI53C875A sets this register to 0x11.
Register: 0x3F
Max_Lat
Read Only
ML MAX_LAT [7:0]
This register is used to specify the desired settings for
latency timer values. Max_Lat is used to specify how
often the device needs to gain access to the PCI bus.
The value specified in this register is in units of
0.25 microseconds. The LSI53C875A sets this register to
0x40.
7 0
IP
00000001
7 0
MG
00010001
7 0
ML
01000000