Preliminary
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Registers
Table 9-34. Interrupt Signal Enable Register (SD_ISE) Field Descriptions (continued)
Bit
Field
Value
Description
19
CIE_SIGEN
Command index error signal status enable
0
Masked
1
Enabled
18
CEB_SIGEN
Command end bit error signal status enable
0
Masked
1
Enabled
17
CCRC_SIGEN
Command CRC error signal status enable
0
Masked
1
Enabled
16
CTO_SIGEN
Command timeout error signal status enable
0
Masked
1
Enabled
15
NULL
Fixed to 0. The host driver shall control error interrupts using the error interrupt signal enable register.
Writes to this bit are ignored.
14-11
Reserved
0
Reserved bit field. Do not write any value.
10
BSR_SIGEN
Boot Status signal status enable. A write to this register when SD_CON[BOOT] is cleared to 0 is ignored
0
Masked
1
Enabled
9
OBI_SIGEN
Out-of-band interrupt signal status enable. A write to this register when SD_CON[14] OBIE is cleared to
0 is ignored.
0
Masked
1
Enabled
8
CIRQ_SIGEN
Card interrupt signal status enable. A clear of this bit also clears the corresponding status bit.
During 1-bit mode, if the interrupt routine does not remove the source of a card interrupt in the SDIO
card, the status bit is reasserted when this bit is set to 1.
This bit must be set to 1 when entering in smart idle mode to enable system to identity wake-up event
and to allow controller to clear internal wake-up source.
0
Masked
1
Enabled
7
CREM_SIGEN
Card Removal signal status enable This bit must be set to 1 when entering in smart idle mode to enable
system to identity wake-up event and to allow controller to clear internal wake-up source.
0
Masked
1
Enabled
6
CINS_SIGEN
Card Insertion signal status enable. This bit must be set to 1 when entering in smart idle mode to enable
system to identity wake-up event and to allow controller to clear internal wake-up source.
0
Masked
1
Enabled
5
BRR_SIGEN
Buffer read ready signal status enable
0
Masked
1
Enabled
4
BWR_SIGEN
Buffer write ready signal status enable
0
Masked
1
Enabled
3
DMA_SIGEN
DMA signal status enable
0
Masked
1
Enabled
2
BGE_SIGEN
Block gap event signal status enable
0
Masked
1
Enabled
999
SPRUGX9 – 15 April 2011
Secure Digital (SD)/—Secure Digital I/O (SDIO) Card Interface
© 2011, Texas Instruments Incorporated