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: 136/148页
文件大小: 1733K
代理商: PC87393F-VJG
5.0 Game Port (GMP) (Continued)
88
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5.3.2
Game Port Control Register (GMPCTL)
This register affects the functionality of the Game Port only when operated in Enhanced mode (bit 0 of this register is set
to 1). Bits 1,2 and 4-7 affect Game Port functionality, as described in the table below.
Location:
Offset 00h
Type:
R/W
Bit
76543210
Name
Device B
Button 1
Debounce
Enable
Device B
Button 0
Debounce
Enable
Device A
Button 1
Debounce
Enable
Device A
Button 0
Debounce
Enable
Reserved
Device B
Pre-Scale
Enable
Device A
Pre-Scale
Enable
GMP
Enhanced
Mode
Enable
Reset
00000000
Required
0
Bit
Description
7
Device B Button 1 Debounce Enable. When set to 1, enables a 16 ms input debouncer on Device B Button 1
status input.
0: Disabled (default)
1: Enabled
6
Device B Button 0 Debounce Enable. Same as bit 7, but for Device B Button 0.
0: Disabled (default)
1: Enabled
5
Device A Button 1 Debounce Enable. Same as bit 7, but for Device A Button 1.
0: Disabled (default)
1: Enabled
4
Device A Button 0 Debounce Enable. Same as bit 7, but for Device A Button 0.
0: Disabled (default)
1: Enabled
3
Reserved
2
Device B Pre-Scale Enable. This bit determines the clock frequency used by Device B position counters.
0: 1 MHz (default)
1: 500 KHz
1
Device A Pre-Scale Enable. This bit determines the clock frequency used by Device A position counters.
0: 1 MHz (default)
1: 500 KHz
0
GMP Enhanced Mode Enable
0: Disabled (default)
1: Enabled
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