MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 502

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Secure digital input/output interface (SDIO)
20.9.9
502/995
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
Bits 31:12
Bits 7:4 DBLOCKSIZE: Data block size
SDIO data control register (SDIO_DCTRL)
Address offset: 0x2C
Reset value: 0x0000 0000
The SDIO_DCTRL register control the data path state machine (DPSM).
Bit 11 SDIOEN: SD I/O enable functions
Bit 10 RWMOD: Read wait mode
Bit 9 RWSTOP: Read wait stop
Bit 8 RWSTART: Read wait start
Bit 3 DMAEN: DMA enable bit
Define the data block length when the block data transfer mode is selected:
Reserved, always read as 0.
If this bit is set, the DPSM performs an SD I/O-card-specific operation.
0: Read Wait control stopping SDIO_CK
1: Read Wait control using SDIO_D2
0: Read wait in progress if RWSTART bit is set
1: Enable for read wait stop if RWSTART bit is set
If this bit is set, read wait operation starts.
0000: (0 decimal) lock length = 2
0001: (1 decimal) lock length = 2
0010: (2 decimal) lock length = 2
0011: (3 decimal) lock length = 2
0100: (4 decimal) lock length = 2
0101: (5 decimal) lock length = 2
0110: (6 decimal) lock length = 2
0111: (7 decimal) lock length = 2
1000: (8 decimal) lock length = 2
1001: (9 decimal) lock length = 2
1010: (10 decimal) lock length = 2
1011: (11 decimal) lock length = 2
1100: (12 decimal) lock length = 2
1101: (13 decimal) lock length = 2
1110: (14 decimal) lock length = 2
1111: (15 decimal) reserved
0: DMA disabled.
1: DMA enabled.
Reserved
Doc ID 13902 Rev 9
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
= 4 bytes
= 1 byte
= 2 bytes
= 8 bytes
= 16 bytes
= 32 bytes
= 64 bytes
= 128 bytes
= 256 bytes
= 512 bytes
= 1024 bytes
= 2048 bytes
= 4096 bytes
= 8192 bytes
= 16384 bytes
rw rw rw rw rw rw rw rw rw rw rw rw
9
8
7
DBLOCKSIZE
6
5
4
3
RM0008
2
1
0