S3C2416X RISC MICROPROCESSOR
HSMMC CONTROLLER
20-21
5.4 BLOCK COUNT REGISTER
This register is used to configure the number of data blocks.
Register
Address
R/W
Description
Reset Value
BLKCNT0
0X4AC00006
R/W
Blocks Count For Current Transfer (Channel 0)
0x0
BLKCNT1
0X4A800006
R/W
Blocks Count For Current Transfer (Channel 1)
0x0
Name
Bit
Description
Initial Value
BLKCNT [15:0]
Blocks Count For Current Transfer
This register is enabled when
Block Count Enable
in the
Transfer
Mode
register is set to 1 and is valid only for multiple block transfers.
The Host Driver shall set this register to a value between 1 and the
maximum block count. The Host Controller decrements the block count
after each block transfer and stops when the count reaches zero.
Setting the block count to 0 results in no data blocks being transferred.
This register should be accessed only when no transaction is executing
(i.e., after transactions are stopped). During data transfer, read
operations on this register may return an invalid value and write
operations are ignored. When saving transfer context as a result of a
Suspend command, the number of blocks yet to be transferred can be
determined by reading this register. When restoring transfer context
prior to issuing a Resume command, the Host Driver shall restore the
previously saved block count.
FFFFh = 65535 blocks
… …
0002h = 2 blocks
0001h = 1 block
0000h = Stop Count
0
Содержание S3C2416
Страница 33: ...S3C2416X RISC MICROPROCESSOR PRODUCT OVERVIEW 1 5 3 BLOCK DIAGRAM Figure 1 1 S3C2416X Block Diagram ...
Страница 38: ...PRODUCT OVERVIEW S3C2416X RISC MICROPROCESSOR 1 10 153 AIN 1 U14 195 EINT 10 GPG2 K15 237 SDATA 14 C18 ...
Страница 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Страница 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Страница 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Страница 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Страница 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Страница 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Страница 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Страница 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Страница 455: ...S3C2416X RISC MICROPROCESSOR HSMMC CONTROLLER 20 9 4 9 SD COMMAND ISSUE SEQUENCE Figure 20 9 Timeout Setting Sequence ...
Страница 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Страница 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Страница 653: ...S3C2416X RISC MICROPROCESSOR ELECTRICAL DATA 26 15 Figure 26 14 SDRAM READ WRITE Timing Trp 2 Trcd 2 Tcl 2 DW 16 bit ...
Страница 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...
Страница 672: ...MECHANICAL DATA S3C2416X RISC MICROPROCESSOR 30 2 Figure 27 2 330 FBGA 1414 Package Dimension 2 Bottom View ...