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S3C2416X RISC MICROPROCESSOR
HSMMC CONTROLLER
20-19
5.3 BLOCK SIZE REGISTER
This register is used to configure the number of bytes in a data block.
Register
Address
R/W
Description
Reset Value
BLKSIZE0
0X4AC00004
R/W Host DMA Buffer Boundary and Transfer Block Size
Register (Channel 0)
0x0
BLKSIZE1
0X4A800004
R/W Host DMA Buffer Boundary and Transfer Block Size
Register (Channel 1)
0x0
Name
Bit
Description
Initial Value
[15]
Reserved
0
BUFBOUND [14:12]
Host DMA Buffer Boundary
The large contiguous memory space may not be available in the virtual
memory system. To perform long DMA transfer,
System Address
register shall be updated at every system memory boundary during
DMA transfer. These bits specify the size of contiguous buffer in the
system memory. The DMA transfer shall wait at the every boundary
specified by these fields and the Host Controller generates the
DMA
Interrupt
to request the Host Driver to update the
System Address
register.
In case of this register is set to 0 (buffer size = 4K bytes), lower 12-bit
of byte address points data in the contiguous buffer and the upper 20-
bit points the location of the buffer in the system memory. The DMA
transfer stops when the Host Controller detects carry out of the
address from bit 11 to 12.
These bits shall be supported when the
DMA Support
in the
Capabilities
register is set to 1 and this function is active when the
DMA Enable
in the
Transfer Mode
register is set to 1.
000b = 4K bytes (Detects A11 carry out)
001b = 8K bytes (Detects A12 carry out)
010b = 16K Bytes (Detects A13 carry out)
011b = 32K Bytes (Detects A14 carry out)
100b = 64K bytes (Detects A15 carry out)
101b = 128K Bytes (Detects A16 carry out)
110b = 256K Bytes (Detects A17 carry out)
111b = 512K Bytes (Detects A18 carry out)
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 ...