at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 739

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

39.3
Figure 39-2. Application Block Diagram
39.4
Table 39-1.
Notes:
39.5
39.5.1
39.5.2
6249D–ATARM–20-Dec-07
Pin Name
MCCDA/MCCDB
MCCK
MCDA0 - MCDA3
MCDB0 - MCDB3
Application Block Diagram
Pin Name List
1. I: Input, O: Output, PP: Push/Pull, OD: Open Drain.
2. When several MCI (x MCI) are embedded in a product, MCCK refers to MCIx_CK, MCCDA to MCIx_CDA, MCCDB to
Product Dependencies
I/O Lines
Power Management
(2)
MCIx_CDB, MCDAy to MCIx_DAy, MCDBy to MCIx_DBy.
I/O Lines Description
The pins used for interfacing the MultiMedia Cards or SD Cards may be multiplexed with PIO
lines. The programmer must first program the PIO controllers to assign the peripheral functions
to MCI pins.
The MCI may be clocked through the Power Management Controller (PMC), so the programmer
must first configure the PMC to enable the MCI clock.
Pin Description
Command/response
Clock
Data 0..3 of Slot A
Data 0..3 of Slot B
1
2 3 4 5 6
ex: File System, Audio, Security, etc.
MMC
7
Application Layer
Physical Layer
MCI Interface
9
1
2 3 4 5 6
Type
I/O/PP/OD
I/O
I/O/PP
I/O/PP
SDCard
AT91SAM9263 Preliminary
(1)
7 8
Comments
CMD of an MMC or SDCard/SDIO
CLK of an MMC or SD Card/SDIO
DAT0 of an MMC
DAT[0..3] of an SD Card/SDIO
DAT0 of an MMC
DAT[0..3] of an SD Card/SDIO
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