UM10503
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User manual
Rev. 1.3 — 6 July 2012
713 of 1269
NXP Semiconductors
UM10503
Chapter 26: LPC43xx Ethernet
26.6.34 DMA Interrupt enable register
The Interrupt Enable register enables the interrupts reported by the DMA_STAT register.
Setting a bit to 1 enables a corresponding interrupt. After a hardware or software reset, all
interrupts are disabled.
24
DFF
Disable flushing of received frames
When this bit is set, the RxDMA does not flush any frames due to the unavailability of
receive descriptors/buffers as it does normally when this bit is reset. (See).
0
R/W
25
-
Reserved
0
RO
26
-
Reserved
0
RO
31:27
-
Reserved
0
RO
Table 567. DMA operation mode register (DMA_OP_MODE, address 0x4001 1018) bit description
…continued
Bit
Symbol
Description
Reset
value
Access
Table 568. DMA Interrupt enable register (DMA_INT_EN, address 0x4001 101C) bit description
Bit
Symbol
Description
Reset
value
Access
0
TIE
Transmit interrupt enable
When this bit is set with Normal Interrupt Summary Enable (bit 16 in this register),
Transmit Interrupt is enabled. When this bit is reset, Transmit Interrupt is disabled.
0
R/W
1
TSE
Transmit stopped enable
When this bit is set with Abnormal Interrupt Summary Enable (bit 15 in this register),
Transmission Stopped Interrupt is enabled. When this bit is reset, Transmission
Stopped Interrupt is disabled.
0
R/W
2
TUE
Transmit buffer unavailable enable
When this bit is set with Normal Interrupt Summary Enable (bit 16 in this register),
Transmit Buffer Unavailable Interrupt is enabled. When this bit is reset, Transmit
Buffer Unavailable Interrupt is disabled.
0
R/W
3
TJE
Transmit jabber timeout enable
When this bit is set with Abnormal Interrupt Summary Enable (bit 15 in this register),
Transmit Jabber Timeout Interrupt is enabled. When this bit is reset, Transmit Jabber
Timeout Interrupt is disabled.
0
R/W
4
OVE
Overflow interrupt enable
When this bit is set with Abnormal Interrupt Summary Enable (bit 15 in this register),
Receive Overflow Interrupt is enabled. When this bit is reset, Overflow Interrupt is
disabled.
0
R/W
5
UNE
Underflow interrupt enable
When this bit is set with Abnormal Interrupt Summary Enable (bit 15 in this register),
Transmit Underflow Interrupt is enabled. When this bit is reset, Underflow Interrupt is
disabled.
0
R/W
6
RIE
Receive interrupt enable
When this bit is set with Normal Interrupt Summary Enable (bit 16 in this register),
Receive Interrupt is enabled. When this bit is reset, Receive Interrupt is disabled.
0
R/W
7
RUE
Receive buffer unavailable enable
When this bit is set with Abnormal Interrupt Summary Enable (bit 15 in this register),
Receive Buffer Unavailable Interrupt is enabled. When this bit is reset, the Receive
Buffer Unavailable Interrupt is disabled.
0
R/W