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| 型號(hào)： | 22505_1 |
| 英文描述： | AMD Test Interface Port Board Schematics? 149KB (PDF) |
| 中文描述： | AMD測(cè)試接口端口板原理圖？ 149KB（PDF格式） |
| 文件頁(yè)數(shù)： | 55/78頁(yè) |
| 文件大?。?/td> | 2691K |
| 代理商： | 22505_1 |
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Test Interface Port Board User’s Manual
2-31
I/O Address Mode
The TIP board supports 8-bit addressing or 16-bit addressing. The 8-bit or 16-bit
addressing is determined by the SW3 switch.
Selecting the optional 8-bit cycle mode changes the MACH device I/O map
address. Note that the peripheral access addresses change. For the I/O map
addresses in the different addressing modes, see “I/O Maps” on page 2-32. If you
need to run the TIP board in 8-bit mode on a 186 family board, you must select
the 8-bit mode.
For example, to select the 8-bit I/O addressing mode on the Am186ED processor,
write 01b to the Auxiliary Configuration register at physical location FFF2h. By
default, this register is set to 00b for 16-bit I/O addressing. Consult the host
microcontroller documentation for the correct 8- or 16-bit I/O addressing
configuration.
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