HSMMC CONTROLLER
S3C2416X RISC MICROPROCESSOR
20-48
Name
Bit
Description
Initial Value
STADMAINT [3]
DMA Interrupt
This status is set if the Host Controller detects the Host DMA
Buffer boundary during transfer. Refer to the
Host DMA Buffer
Boundary
in the
Block Size
register. Other DMA interrupt factors
may be added in the future. This interrupt shall not be generated
after the
Transfer Complete
. (RW1C)
1 =
DMA Interrupt
is generated
0 = No
DMA Interrupt
0
STABLKGAP [2]
Block Gap Event
If the
Stop At Block Gap Request
in the
Block Gap Control
register is set, this bit is set when both a read / write transaction is
stopped at a block gap. If
Stop At Block Gap Request
is not set
to 1, this bit is not set to 1.
(1) In the case of a Read Transaction
This bit is set at the falling edge of the
DAT Line Active
Status
(When the transaction is stopped at SD Bus timing. The Read Wait
must be supported in order to use this function.
(2) Case of Write Transaction
This bit is set at the falling edge of
Write Transfer Active
Status
(After getting CRC status at SD Bus timing).
1 = Transaction stopped at block gap
0 = No
Block Gap Event
0
STATRANCMPLT [1]
Transfer Complete
This bit is set when a read / write transfer is completed.
(1) In the case of a Read Transaction
This bit is set at the falling edge of
Read Transfer Active
Status.
There are two cases in which this interrupt is generated. The first is
when a data transfer is completed as specified by data length
(After the last data has been read to the Host System). The second
is when data has stopped at the block gap and completed the data
transfer by setting the
Stop At Block Gap Request
in the
Block
Gap Control
register (After valid data has been read to the Host
System).
(2) In the case of a Write Transaction
This bit is set at the falling edge of the
DAT Line Active
Status.
There are two cases in which this interrupt is generated. The first is
when the last data is written to the SD card as specified by data
length and the busy signal released. The second is when data
transfers are stopped at the block gap by setting
Stop At Block
Gap Request
in the
Block Gap Control
register and data transfers
completed. (After valid data is written to the SD card and the busy
signal released). (RW1C)
0
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...