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: 96/148页
文件大小: 1733K
代理商: PC87393F-VJG
2.0 Device Architecture and Configuration (Continued)
51
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Table 19. Parallel Port Registers at Second Level Offset
2.12.2
Logical Device 1 (PP) Configuration
Table 20 lists the configuration registers which affect the Parallel Port. Only the last register (F0h) is described here. See
Sections 2.2.3 and 2.2.4 for descriptions of the others.
Table 20. Parallel Port Conguration Registers
Offset
Mnemonic
Type
Register Name
00h
Control0
R/W
Extended Control 0
02h
Control2
R/W
Extended Control 1
04h
Control4
R/W
Extended Control 4
05h
PP Confg0
R/W
Conguration 0
Index
Conguration Register or Action
Type
Reset
30h Activate. See also bit 0 of the SIOCF1 register.
R/W
00h
60h Base Address MSB register. Bits 7-3 (for A15-11) are read only, 00000b. Bit 2 (for
A10) should be 0b.
R/W
02h
61h Base Address LSB register. Bits 1 and 0 (A1 and A0) are read only, 00b. For ECP
Mode 4 (EPP) or when using the Extended registers, bit 2 (A2) should also be 0b.
R/W
78h
70h Interrupt Number and Wake-Up on IRQ Enable register
R/W
07h
71h Interrupt Type
Bits 7-2 are read only.
Bit 1 is a read/write bit.
Bit 0 is read only. It reects the interrupt type dictated by the Parallel Port operation
mode. This bit is set to 1 (level interrupt) in Extended Mode and cleared (edge
interrupt) in all other modes.
R/W
02h
74h DMA Channel Select
R/W
04h
75h Report no second DMA assignment
RO
04h
F0h Parallel Port Conguration register
R/W
F2h
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