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參數資料
| 型號： | W90100F |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | Embedded Micro-Controller(32位嵌入式的微控制器) |
| 中文描述： | 嵌入式微控制器（32位嵌入式的微控制器） |
| 文件頁數： | 37/61頁 |
| 文件大小： | 380K |
| 代理商： | W90100F |
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W90100F
Embedded Micro-Controller
Revision 1.1
The above information is the exclusive intellectual property of Winbond Electronics Corp. and shall not be disclosed, distributed or reproduced without permission from Winbond
-37-
Publication Release Date: 10/07/97
4
3FC
TOR[0:7]
- Time Out Register.
- bit 7 ~ 1: Time out bit-count.
- bit 0: Irpt_TOUT enable. (1/0- Enable/Disable)
- Line Status Register.
- Read only.
- Write: Null operation.
5
3FD
LSR[0:7]
- bit 7: Data Ready (DR).
- bit 6: Overrun Error (OE).
- bit 5: Parity Error (PE).
- bit 4: Framing Error (FE).
- bit 3: Break Interrupt (BI).
- bit 2: THR Empty (THRE).
- bit 1: Transmitter Empty (TEMT).
- bit 0: Error in RCVR FIFO (Err_RCVR).
- MODEM Status Register:
non-exist
- Write: Null operation.
- Read: Get 8'b0
- Scratchpad Register.
- Read/Write-able
6
3FE
MOS[0:7]
7
3FF
SCR[0:7]
TABLE 8.10 W90100 UART REGISTERS
Note:
1
.
Irpt_RDA: Received Data Available interrupt.
Irpt_THRE: Transmitter Holding Register Empty interrupt.
Irpt_RLS: Receiver Line Status Interrupt.
Irpt_MOS: MODEM Status Interrupt.
Irpt_TOUT: Receiver Time OUT Interrupt.
2.
Baud rate = Frequency input / (16 * ({DLM, DLL} + 2))
3.
Interrupt Identification:
IIR[4]
-
0
0
0
1
0
IIR[5]
-
0
0
1
1
1
IIR[6]
-
0
1
0
0
1
IIR[7]
1
0
0
0
0
0
Priority
Irpt type
None
Irpt_MOS
Irpt_THRE
Irpt_RDA
Irpt_TOUT
Irpt_RLS
-
4th
3rd
2nd
2nd
1st
* Irpt_RLS- caused by: Overrun Error or Parity Error or Framing Error or Break Interrupt.
- reset by: Reading LSR.
* Irpt_RDA- caused by: Received data >= RCVR trigger level.
- reset by: Reading RBR or RCVR FIFO drops below the trigger level.
* Irpt_TOUT- caused by: RCVR FIFO is non-empty and have not been accessed (Read/write)
for the time >= TOUR[1:7].
- reset by: Reading RBR.
* Irpt_THRE- caused by: THRE has been set.
- reset by: Reading IIR (if source of INTR is Irpt_THRE) or writing THR.
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