参数资料
型号: PC87393F-VJG
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 外设及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封装: TQFP-100
文件页数: 140/148页
文件大小: 1733K
代理商: PC87393F-VJG
5.0 Game Port (GMP) (Continued)
91
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5.3.5
Game Port Interrupt Enable Register (GMPIEN)
This register defines the conditions on which the Game Port asserts its interrupt request signal.
This register is functional only in Enhanced mode.
Location:
Offset 03h
Type:
R/W
Bit
76543210
Name
Device B
Button 1
IRQ Enable
Device B
Button 0
IRQ Enable
Device A
Button 1
IRQ Enable
Device A
Button 0
IRQ Enable
Reserved
Position
IRQ Event
Denition
Device B
Position
IRQ Enable
Device A
Position
IRQ Enable
Reset
00000000
Bit
Description
7
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
6
Device B Button 0 IRQ Enable. Same as bit 7 of this register, but for Device B Button 0.
0: Disabled (default)
1: Enabled
5
Device A Button 1 IRQ Enable. Same as bit 7 of this register, but for Device A Button 1.
0: Disabled (default)
1: Enabled
4
Device A Button 0 IRQ Enable. Same as bit 7 of this register, but for Device A Button 0.
0: Disabled (default)
1: Enabled
3
Reserved
2
Position IRQ Event Denition Denes 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
1
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
0
Device A Position IRQ Enable. Same as bit 2 of this register, but for Device A.
0: Disabled (default)
1: Enabled
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