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: 73/148页
文件大小: 1733K
代理商: PC87393F-VJG
2.0 Device Architecture and Configuration (Continued)
30
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Table 10. Interrupt Conguration Registers
Table 11. DMA Conguration Registers
Table 12. Special Logical Device Conguration Registers
Index
Register Name
Description
70h
Interrupt Number
and Wake-Up on
IRQ Enable
Indicates selected interrupt number.
Bits 7-5 - Reserved.
Bit 4 - Enables wake-up on the IRQ of the logical device. When enabled, IRQ
assertion triggers a wake-up event.
0: Disabled (default)
1: Enabled
Bits 3–0 select the interrupt number. A value of 1 selects IRQL1. A value of 15
selects IRQL15. IRQL0 is not a valid interrupt selection and represents no interrupt
selection.
71h
Interrupt Request
Type Select
Indicates the type and level of the interrupt request number selected in the previous
register.
If a logical device supports only one type of interrupt, this register is read only.
Bits 7–2 - Reserved.
Bit 0 - Type of interrupt request selected in the previous register.
0: Edge
1: Level
Bit 1 - Level of the interrupt request selected in the previous register.
0: Low polarity
1: High polarity
Index
Register Name
Description
74h
DMA Channel
Select 0
Indicates selected DMA channel for DMA 0 of the logical device (0 - The rst DMA
channel in case of using more than one DMA channel).
Bits 7-3 - Reserved.
Bits 2-0 select the DMA channel for DMA 0. The valid choices are 0-3, where a
value of 0 selects DMA channel 0, 1 selects channel 1, etc.
A value of 4 indicates that no DMA channel is active.
The values 5-7 are reserved.
75h
DMA Channel
Select 1
Indicates selected DMA channel for DMA 1 of the logical device (1 - The second
DMA channel in case of using more than one DMA channel).
Bits 7-3 - Reserved.
Bits 2-0 select the DMA channel for DMA 1. The valid choices are 0-3, where a
value of 0 selects DMA channel 0, 1 selects channel 1, etc.
A value of 4 indicates that no DMA channel is active.
The values 5-7 are reserved.
Index
Register Name
Description
F0h-FEh
Logical Device
Conguration
Special (vendor-dened) conguration options
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