SDI Technologies SDIO Card Manual Do Utilizador
©Copyright 2000-2007 SD Card Association
SDIO Simplified Specification Version 2.00
v
5.3.2
Special Timing for CMD53 Multi-Block Read.............................................................................. 25
6.
SDIO Card Internal Operation................................................................................................................ 26
6.1
Overview ........................................................................................................................................... 26
6.2
Register Access Time........................................................................................................................ 26
6.3
Interrupts ........................................................................................................................................... 26
6.4
Suspend/Resume.............................................................................................................................. 27
6.5
Read Wait.......................................................................................................................................... 27
6.6
CMD52 During Data Transfer............................................................................................................ 27
6.7
SDIO Fixed Internal Map................................................................................................................... 27
6.8
Common I/O Area (CIA) .................................................................................................................... 28
6.9
Card Common Control Registers (CCCR)......................................................................................... 28
6.10
Function Basic Registers (FBR) ........................................................................................................ 35
6.11
Card Information Structure (CIS)....................................................................................................... 37
6.12
Multiple Function SDIO Cards........................................................................................................... 37
6.13
Setting Block Size with CMD53......................................................................................................... 37
6.14
Bus State Diagram ............................................................................................................................ 38
7.
Embedded I/O Code Storage Area (CSA) ............................................................................................. 39
7.1
CSA Access....................................................................................................................................... 39
7.2
CSA Data Format .............................................................................................................................. 39
8.
SDIO Interrupts....................................................................................................................................... 40
8.1
Interrupt Timing ................................................................................................................................. 40
8.1.1
SPI and SD 1-bit Mode Interrupts .............................................................................................. 40
8.1.2
SD 4-bit Mode ............................................................................................................................ 40
8.1.3
Interrupt Period Definition .......................................................................................................... 40
8.1.4
Interrupt Period at the Data Block Gap in 4-bit SD Mode (Optional) .......................................... 40
8.1.5
Inhibited Interrupts (Removed Section)...................................................................................... 40
8.1.6
End of Interrupt Cycles............................................................................................................... 40
8.1.7
Terminated Data Transfer Interrupt Cycle .................................................................................. 41
8.1.8
Interrupt Clear Timing................................................................................................................. 41
9.
SDIO Suspend/Resume Operation........................................................................................................ 42
10.
SDIO Read Wait Operation..................................................................................................................... 43
11.
Power Control......................................................................................................................................... 44
11.1
Power Control Overview.................................................................................................................... 44
11.2
Power Control support for SDIO Cards ............................................................................................. 44
11.2.1
Master Power Control ................................................................................................................ 44
11.2.2
Power Selection ......................................................................................................................... 45
11.2.3
High-Power Tuples..................................................................................................................... 45
11.3
Power Control Support for the SDIO Host......................................................................................... 45
11.3.1
Version 1.10 Host....................................................................................................................... 45
11.3.2
Power Control Operation............................................................................................................ 46
12.
High-Speed Mode ................................................................................................................................... 47
12.1
SDIO High-Speed Mode.................................................................................................................... 47
12.2
Switching Bus Speed Mode in a Combo Card................................................................................... 47
13.
SDIO Physical Properties ...................................................................................................................... 48
13.1
SDIO Form Factors ........................................................................................................................... 48
13.2
Full-Size SDIO .................................................................................................................................. 48
13.3
miniSDIO........................................................................................................................................... 48
14.
SDIO Power............................................................................................................................................. 48
14.1
SDIO Card Initialization Voltages ...................................................................................................... 48
14.2
SDIO Power Consumption ................................................................................................................ 48
15.
Inrush Current Limiting.......................................................................................................................... 50
16.
CIS Formats ............................................................................................................................................ 51
16.1
CIS Reference Document ................................................................................................................. 51