Multimedia Card Registers
Table 18-40. SD_ISE Register Field Descriptions (continued)
Bit
Field
Type
Reset
Description
18
CEB_SIGEN
R/W
0h
Command end bit error signal status enable
0x0 = Masked
0x1 = Enabled
17
CCRC_SIGEN
R/W
0h
Command CRC error signal status enable
0x0 = Masked
0x1 = Enabled
16
CTO_SIGEN
R/W
0h
Command timeout error signal status enable
0x0 = Masked
0x1 = Enabled
15
NULL
R
0h
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
R
0h
10
BSR_SIGEN
R/W
0h
Boot Status signal status enable.
A write to this register when SD_CON[BOOT] is cleared to 0 is
ignored
0x0 = Masked
0x1 = Enabled
9
OBI_SIGEN
R/W
0h
Out-of-band interrupt signal status enable.
A write to this register when SD_CON[14] OBIE is cleared to 0 is
ignored.
0x0 = Masked
0x1 = Enabled
8
CIRQ_SIGEN
R/W
0h
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.
0x0 = Masked
0x1 = Enabled
7
CREM_SIGEN
R/W
0h
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.
0x0 = Masked
0x1 = Enabled
6
CINS_SIGEN
R/W
0h
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.
0x0 = Masked
0x1 = Enabled
5
BRR_SIGEN
R/W
0h
Buffer read ready signal status enable
0x0 = Masked
0x1 = Enabled
4
BWR_SIGEN
R/W
0h
Buffer write ready signal status enable
0x0 = Masked
0x1 = Enabled
3
DMA_SIGEN
R/W
0h
DMA signal status enable
0x0 = Masked
0x1 = Enabled
3433
SPRUH73H – October 2011 – Revised April 2013
Multimedia Card (MMC)
Copyright © 2011–2013, Texas Instruments Incorporated