Rainbow Electronics AT75C220 - 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