s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 441

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

S3C2410A
SDI SPECIAL REGISTERS
SDI Control (SDICON) Register
NOTE:
SDI Baud Rate Prescaler (SDIPRE) Register
SDICON
Byte Order Type
(ByteOrder)
Receive SDIO
Interrupt from card
(RcvIOInt)
Read Wait Enable
(RWaitEn)
FIFO Reset (FRST)
Clock Type (CTYP)
SDIPRE
Prescaler Value
Register
Register
SDICON
SDIPRE
Byte Order Type
- Type A: D[7:0]
- Type B: D[31:24]
0x5A000000
0x5A000004
Address
Address
[7:0]
Bit
Bit
[4]
[3]
[2]
[1]
[0]
D[15:8]
D[23:16]
Determine byte order type when you read (write) data from (to) SD
host FIFO with word boundary.
0 = Type A,
Determine whether SD host receives SDIO Interrupt from the card
or not (for SDIO).
0 = ignore,
Determine read wait request signal generate when SD host waits
the next block in multiple block read mode. This bit needs to
delay the next block to be transmitted from the card (for SDIO).
0 = disable (no generate),
Reset FIFO value. This bit is automatically cleared.
0 = normal mode,
Determines which clock type is used as SDCLK.
0 = MMC Type,
Determine SDI clock (SDCLK) rate as above equation.
Baud rate = PCLK / 2 / (Prescaler value + 1)
D[23:16]
D[15:8]
R/W
R/W
R/W
R/W
D[31:24]
D[7:0]
SDI control register
SDI baud rate prescaler register
Description
Description
1 = Read wait enable (use SDIO)
1 = FIFO reset
1 = Type B
1 = receive SDIO Interrupt
1 = SD Type
Description
Description
MMC/SD/SDIO HOST CONTROLLER
Reset Value
Initial Value
Reset Value
Initial Value
0x00
0x0
0x0
0
0
0
0
0
19-5