Spi interrupt mask register – Rainbow Electronics AT75C220 User Manual
Page 135

AT75C220
135
SPI Interrupt Mask Register
Register Name:SP_IMR
Access Type:Read-only
Reset Value: 0x0
•
RDRF: Receive Data Register Full Interrupt Mask
0 = Receive data register full interrupt is disabled.
1 = Receive data register full interrupt is enabled.
•
TDRE: Transmit Data Register Empty Interrupt Mask
0 = Transmit data register empty interrupt is disabled.
1 = Transmit data register empty interrupt is enabled.
•
MODF: Mode Fault Error Interrupt Mask
0 = Mode fault error interrupt is disabled.
1 = Mode fault error interrupt is enabled.
•
OVRES: Overrun Error Interrupt Mask
0 = Overrun error interrupt is disabled.
1 = Overrun error interrupt is enabled.
A one in any of the bits unmasks the relative interrupt.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
–
–
OVRES
MODF
TDRE
RDRF
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