Samsung S5PC110, Manual

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S5PC110_UM 5 COMPACT FLASH CONTROLLER
5-23
5.11.2.8 ATA Transfer Count Number (ATA_XFR_NUM, R/W, Address = 0xE820_0034)
ATA_XFR_NUM Bit Description R/W Initial State
xfr_num [31:1] Data transfer number.
To transfer 1-sector (512-byte), you should set 32’h1ff.
R/W 0x00000000
Reserved [0] Reserved R 0x0
5.11.2.9 ATA Current Transfer Count (ATA_XFR_CNT, R, Address = 0xE820_0038)
ATA_XFR_CNT Bit Description R/W Initial State
xfr_cnt [31:1] Current remaining transfer counter. This value counts
down from ATA_XFR_NUM. It goes to zero if all pre-
defined data are transferred.
In case of read transfer, ATA_XFR_NUM decreases by
1(2-byte).
In case of write transfer, ATA_XFR_NUM decreases by
16(32-byte), because the AHB burst size is 8.
R 0x00000000
Reserved [0] Reserved R 0x0
5.11.2.10 Start Address of the Track Buffer (ATA_TBUF_BASE, R/W, Address = 0xE820_003C)
ATA_TBUF_BASE Bit Description R/W Initial State
track_buffer_base [31:2] Start address of track buffer (4 byte unit) R/W 0x00000000
Reserved [1:0] Reserved R 0x0
5.11.2.11 Size of the Track Buffer (ATA_TBUF_SIZE, R/W, Address = 0xE820_0040)
ATA_TBUF_SIZE Bit Description R/W Initial State
track_buffer_size [31:5] Size of track buffer (32 byte unit)
This should be set to “size_of_data_in_bytes – 1”. For
example, to transfer 1-sector (512-byte, 32’h200), you
should set 32’h1FF ( = 32’h200 – 1).
R/W 0x0000000
Reserved [4:0] Reserved R 0x00
5.11.2.12 Start Address of the Source Buffer (ATA_SBUF_BASE, R/W, Address = 0xE820_0044)
ATA_SBUF_BASE Bit Description R/W Initial State
src_buffer_base [31:2] Start address of source buffer (4byte unit) R/W 0x00000000
Reserved [1:0] Reserved R 0x0