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参数资料
| 型号： | MPR081QR2 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, QCC16 |
| 封装： | 5 X 5 MM, 1 MM HEIGHT, ROHS COMPLIANT, QFN-16 |
| 文件页数： | 3/22页 |
| 文件大小： | 324K |
| 代理商： | MPR081QR2 |
MPR081
Sensors
Freescale Semiconductor
11
Table 10. FIFO Register Format
Register
R/W
Register
Address
Register Data
D7
D6
D5
D4
D3
D2
D1
D0
FIFO Register(1)
1. Reading or writing the MPR08 clears IRQ, IRQ will only be re-asserted by an event after the FIFO has been emptied by read(s).
1
0x00
More
Flag
Empty
Flag
Overflow
Flag
Rotary Pad that has been detected as pressed
FIFO Status
Clear the FIFO.
Subsequent reads without any intervening
addition(s) to the FIFO will return
1'b0100000
0
0x00
Clear FIFO (D7 - D0 data is don’t care; it is not stored)
This data is not the last FIFO item.
FIFO has not overflowed.
1
0
X
This data is not the last FIFO item.
FIFO did overflow, discarding the most
recent entries.
1
0
1
X
This data is the last FIFO item.
FIFO has not overflowed.
Subsequent reads without any intervening
addition(s) to the FIFO will return
1'b0100000
0
X
This data is the last FIFO item.
FIFO did overflow, discarding the most
recent entries
(FIFO overflow flag will now be cleared).
Subsequent reads without any intervening
addition(s) to the FIFO will return
1'b0100000
0
1
X
FIFO is empty
0
1
0
Rotary Input Events
Rotary has been released
1
0x00
X
0
Rotary is in position North (N)
X
1
0
Rotary is in position NNE
X
1
0
1
Rotary is in position NE
X
1
0
1
0
Rotary is in position NEE
X
1
0
1
Rotary is in position East (E)
X
1
0
1
0
Rotary is in position SEE
X
1
0
1
0
1
Rotary is in position SE
X
1
0
1
0
Rotary is in position SSE
X
1
0
1
Rotary is in position South (S)
X
1
0
Rotary is in position SSW
X
1
0
1
Rotary is in position SW
X
1
0
1
0
Rotary is in position SWW
X
1
0
1
Rotary is in position West (W)
X
1
0
Rotary is in position NWW
X
1
0
1
Rotary is in position NW
X
1
0
Rotary is in position NNW
X
1
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