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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: 130/174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.
130
Versi on 0. 4, March/2000
Bit 1
This is a self-clear bit, ie. set this bit to 1, it will be clear to 0 automatically after 1
EXTCLK.
When this bit is set, The TX-FIFO pointer will be cleared to 0, the TX-FIFO is empty
immediately.
Bit 2
Reset RX-FIFO
This is a self-clear bit, ie. set this bit to 1, it will be clear to 0 automatically after 1
EXTCLK.
When this bit is set, The RX-FIFO pointer will be cleared to 0, the RX-FIFO is empty
immediately.
Bit 3-4 RX-FIFO threshold level
00 = RX-FIFO full
01 = 3/4 RX-FIFO
10 = 1/2 RX-FIFO
11 = RX-FIFO non-empty
Bit 5-6 TX-FIFO threshold level
00 = TX-FIFO empty
01 = 1/4 TX-FIFO
10 = 1/2 TX-FIFO
11 = TX-FIFO non-full
Bit 7
RX-FIFO interrupt enable
0 = disable
1 = enable
Bit 8
TX-FIFO interrupt enable
0 = disable
1 = enable
Bit 9
RX-FIFO overrun interrupt enable
0 = disable
1 = enable
Bit 10-15 Reserved
Reset TX-FIFO
Status Register (STUS)
Port address : 0xf000038a
Read/Write
Power-on Default : --
0
1
2
3
4
5
6
7
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