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參數資料
型號: W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結構的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結構的32位嵌入式微控制器)
文件頁數: 107/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
107
Versi on 0. 4, March/2000
AIOBASE[8:15]
Bit 0-15 AIO IO space base address
This register define the starting address of AIO's IO space on 64K boundary. As the high
halfword (16 bits) address lines of
PCI accesses
match the AIOBASE[0:15] , and if CFG[0]
has been enabled, AIO controller responds DEVSEL_ and TRDY_ to PCI bridge and issue
a IO access cycle to AIO IO devices.
AIO Memory Base Register (XMBASE)
Port address : 0xf0000364
Read/Write
Power-on Default : 0x1ef
0
1
2
3
4
5
6
7
Reserved
RAWS
8
9
10
11
12
13
14
15
XMBASE[0:7]
Bit 7
Bit 8-15 AIO memory space base address
This register define the starting address of AIO's memory space on 16M boundary. As the
high byte address lines of
PCI accesses
match the XMBASE[0:7], AIO controller responds
DEVSEL_ and TRDY_ to PCI bridge and issue a memory access cycle to AIO memory devices.
Always ROM cycle
Set this bit to logic one, all PCI accesses will be redirected to AIO memory (ROM/Flash)
accesses. The bit is set after each cold start so that the chip's initialization (ROM access)
will be redirected to AIO bus where the code ROM attached. Turn off this bit, once the
other
PCI
or
AIO devices
need to be enabled.
6.6 PARALLEL PORT INTERFACE REGISTERS
There are eleven registers included in the Parallel Port Interface (PPI) controller. The IO address map is
allocated from 0xf0000370 to 0xf000037f.
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