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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PC87413 датащи(PDF) 82 Page - National Semiconductor (TI) |
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PC87413 датащи(HTML) 82 Page - National Semiconductor (TI) |
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82 / 257 page  3.0 Device Architecture and Configuration (Continued) www.national.com 82 Revision1.2 3.15.10 X-Bus I/O Size 2 Configuration Register (XIOSIZE2) This register defines the size of User-Defined I/O zone blocks 2 and 3, which are mapped to the X-Bus. The two blocks are contiguous and have the same size. The User-Defined I/O Zone 3 address does not depend on Zone 2 being enabled. This register is reset by hardware to 00h. Power Well:VSB Location:Index F6h Type: R/W or RO Bit 76543210 Name Reserved IOSIZE2 Reset 00000000 Bit Description 7-4 Reserved. 3-0 IOSIZE2 (User-Defined I/O Zone Size 2). Defines the size in bytes of the zone window. The size is defined as a power of two using the equation: NumOfBytes = 2n (where n = the value of bits 3-0). The zone must always be aligned to the window size (i.e., for a 128-byte window, the seven LSBs of the base address are zero). Bits 3 2 1 0 Size (Bytes) 0000: 1 (20 - default) ... 1 0 0 0: 256 (28) Other: Reserved |
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