UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
427 of 1269
NXP Semiconductors
UM10503
Chapter 20: LPC43xx SD/MMC interface
20.6.14 Response Register 1 (RESP1)
20.6.15 Response Register 2 (RESP2)
20.6.16 Response Register 3 (RESP3)
20.6.17 Masked Interrupt Status Register (MINTSTS)
Table 310. Response Register 1 (RESP1, address 0x4000 4034) bit description
Bit
Symbol
Description
Reset
value
31:0
RESPONSE1
Register represents bit[63:32] of long response. When CIU
sends auto-stop command, then response is saved in
register. Response for previous command sent by host is
still preserved in Response 0 register. Additional auto-stop
issued only for data transfer commands, and response type
is always short for them. For information on when CIU
sends auto-stop commands, refer to Auto-Stop <tbd>.
0
Table 311. Response Register 2 (RESP2, address 0x4000 4038) bit description
Bit
Symbol
Description
Reset
value
31:0
RESPONSE2
Bit[95:64] of long response
0
Table 312. Response Register 3 (RESP3, address 0x4000 403C) bit description
Bit
Symbol
Description
Reset
value
31:0
RESPONSE3
Bit[127:96] of long response
0
Table 313. Masked Interrupt Status Register (MINTSTS, address 0x4000 4040) bit description
Bit
Symbol
Description
Reset
value
0
CDET
Card detect. Interrupt enabled only if corresponding bit in
interrupt mask register is set.
0
1
RE
Response error. Interrupt enabled only if corresponding bit
in interrupt mask register is set.
0
2
CDONE
Command done. Interrupt enabled only if corresponding bit
in interrupt mask register is set.
0
3
DTO
Data transfer over. Interrupt enabled only if corresponding
bit in interrupt mask register is set.
0
4
TXDR
Transmit FIFO data request. Interrupt enabled only if
corresponding bit in interrupt mask register is set.
0
5
RXDR
Receive FIFO data request. Interrupt enabled only if
corresponding bit in interrupt mask register is set.
0
6
RCRC
Response CRC error. Interrupt enabled only if
corresponding bit in interrupt mask register is set.
0
7
DCRC
Data CRC error. Interrupt enabled only if corresponding bit
in interrupt mask register is set.
0
8
RTO
Response time-out. Interrupt enabled only if corresponding
bit in interrupt mask register is set.
0