UM10503
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User manual
Rev. 1.3 — 6 July 2012
436 of 1269
NXP Semiconductors
UM10503
Chapter 20: LPC43xx SD/MMC interface
20.6.31 Internal DMAC Interrupt Enable Register (IDINTEN)
12:10 EB
Error Bits. Indicates the type of error that caused a Bus Error. Valid
only with Fatal Bus Error bit (IDSTS[2]) set. This field does not
generate an interrupt.
001 - Host Abort received during transmission
010 - Host Abort received during reception
Others: Reserved EB is read-only.
0
16:13 FSM
DMAC state machine present state.
0 - DMA_IDLE
1 - DMA_SUSPEND
2 - DESC_RD
3 - DESC_CHK
4 - DMA_RD_REQ_WAIT
5 - DMA_WR_REQ_WAIT
6 - DMA_RD
7 - DMA_WR
8 - DESC_CLOSE
This bit is read-only.
0
31:17 -
Reserved
Table 326. Internal DMAC Status Register (IDSTS, address 0x4000 408C) bit description
Bit
Symbol
Description
Reset
value
Table 327. Internal DMAC Interrupt Enable Register (IDINTEN, address 0x4000 4090) bit
description
Bit
Symbol
Description
Reset
value
0
TI
Transmit Interrupt Enable. When set with Normal Interrupt
Summary Enable, Transmit Interrupt is enabled. When
reset, Transmit Interrupt is disabled.
0
1
RI
Receive Interrupt Enable. When set with Normal Interrupt
Summary Enable, Receive Interrupt is enabled. When
reset, Receive Interrupt is disabled.
0
2
FBE
Fatal Bus Error Enable. When set with Abnormal Interrupt
Summary Enable, the Fatal Bus Error Interrupt is enabled.
When reset, Fatal Bus Error Enable Interrupt is disabled.
0
3
-
Reserved
4
DU
Descriptor Unavailable Interrupt. When set along with
Abnormal Interrupt Summary Enable, the DU interrupt is
enabled.
0
5
CES
Card Error summary Interrupt Enable. When set, it enables
the Card Interrupt summary.
0
7:6
-
Reserved