PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 91

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

5.0 Game Port (GMP)
5.3.5
This register defines the conditions on which the Game Port asserts its interrupt request signal.
This register is functional only in Enhanced mode.
Location:
Type:
Bit
Name
Reset
Bit
7
6
5
4
3
2
1
0
Game Port Interrupt Enable Register (GMPIEN)
Device B Button 1 IRQ Enable. When set to 1, the Game Port issues an interrupt request in response to an
event triggered by Button 1 of Device B. When set to 0, Button 1 of Device B cannot cause interrupt requests to
be issued.
0: Disabled (default)
1: Enabled
Device B Button 0 IRQ Enable. Same as bit 7 of this register, but for Device B Button 0.
0: Disabled (default)
1: Enabled
Device A Button 1 IRQ Enable. Same as bit 7 of this register, but for Device A Button 1.
0: Disabled (default)
1: Enabled
Device A Button 0 IRQ Enable. Same as bit 7 of this register, but for Device A Button 0.
0: Disabled (default)
1: Enabled
Reserved
Position IRQ Event Definition Defines the event on which the position IRQ is asserted for both game devices.
0: Both X-Position Counter and Y-Position Counter are ready
1: Either X-Position Counter or Y-Position Counter is ready
Device B Position IRQ Enable. When set to 1, the Game Port issues an interrupt request when the position
reading of Device B is completed and the position counters can be read. When set to 0, no interrupt request is
issued in response to any change in the status of Device B position counters.
0: Disabled (default)
1: Enabled
Device A Position IRQ Enable. Same as bit 2 of this register, but for Device A.
0: Disabled (default)
1: Enabled
Offset 03h
R/W
IRQ Enable
Device B
Button 1
7
0
IRQ Enable
Device B
Button 0
(Continued)
6
0
IRQ Enable
Device A
Button 1
5
0
IRQ Enable
Device A
Button 0
Description
91
4
0
Reserved
3
0
IRQ Event
Definition
Position
2
0
IRQ Enable
Device B
Position
1
0
IRQ Enable
Device A
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Position
0
0