402-00005-00
Registers
3–16
Rev 02; February 8, 2002
3.1.19 Interrupt Pin (INTPIN) R-O
0
7
Address 0x3D
0
0
0
0
0
0
0
1
INTPIN
This register indicates the PCI interrupt pin used by the PCVisionplus. This register is boot-loaded at power-up with
a value of 0x1 indicating PCI interrupt pin #INTA is connected to the PCVisionplus. This register is read only.
3.1.20 Minimum Grant (MINGNT) R-O
0
7
Base A 0x3E
1
1
1
1
1
1
1
1
MINGNT
This register provides information to the host PCI system indicating the minimum amount of time the PCVisionplus
will require for bus master write transfers. The register is boot-loaded at power-up with a value of 0xFF (255) which
indicates a desired minimum bus master access time of 64 microseconds (255 x 250 ns). This register is read-only.
3.1.21 Maximum Latency (MAXLAT) R-O
0
7
Address 0x3F
0
0
0
0
0
0
0
1
MAXLAT
This register provides information to the host PCI system indicating how often the PCVisionplus needs to gain ac-
cess to the PCI bus as bus master. The register is boot-loaded at power-up with a value of 0x01 (1) which indicates a
desired maximum latency between master access of 250 nanoseconds (1 x 250 ns). This register is read-only.
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