UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
423 of 1269
NXP Semiconductors
UM10503
Chapter 20: LPC43xx SD/MMC interface
20.6.11 Command Argument Register (CMDARG)
4
TXDR
Transmit FIFO data request. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
5
RXDR
Receive FIFO data request. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
6
RCRC
Response CRC error. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
7
DCRC
Data CRC error. Bits used to mask unwanted interrupts.
Value of 0 masks interrupt; value of 1 enables interrupt.
0
8
RTO
Response time-out. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
9
DRTO
Data read time-out. Bits used to mask unwanted interrupts.
Value of 0 masks interrupt; value of 1 enables interrupt.
0
10
HTO
Data starvation-by-host time-out (HTO) /Volt_switch_int.
Bits used to mask unwanted interrupts. Value of 0 masks
interrupt; value of 1 enables interrupt.
0
11
FRUN
FIFO underrun/overrun error. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
12
HLE
Hardware locked write error. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
13
SBE
Start-bit error. Bits used to mask unwanted interrupts.
Value of 0 masks interrupt; value of 1 enables interrupt.
0
14
ACD
Auto command done. Bits used to mask unwanted
interrupts. Value of 0 masks interrupt; value of 1 enables
interrupt.
0
15
EBE
End-bit error (read)/Write no CRC. Bits used to mask
unwanted interrupts. Value of 0 masks interrupt; value of 1
enables interrupt.
0
16
SDIO_INT_MASK Mask SDIO interrupt. When masked, SDIO interrupt
detection for card is disabled. A 0 masks an interrupt, and
1 enables an interrupt. In MMC-Ver3.3-only mode, this bit
is always 0.
0
31:17
-
Reserved
-
Table 306. Interrupt Mask Register (INTMASK, address 0x4000 4024) bit description
Bit
Symbol
Description
Reset
value
Table 307. Command Argument Register (CMDARG, address 0x4000 4028) bit description
Bit
Symbol
Description
Reset
value
31:0
CMD_ARG
Value indicates command argument to be passed to card. 0