Datasheet

580
SAM9X35 [DATASHEET]
11055E–ATARM–10-Mar-2014
Figure 34-4. MMC Bus Connections (One Slot)
Note: When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK, MCCDA to
HSMCIx_CDA MCDAy to HSMCIx_DAy.
Figure 34-5. SD Memory Card Bus Topology
The SD Memory Card bus includes the signals listed in Table 34-5.
Notes: 1. I: input, O: output, PP: Push Pull, OD: Open Drain.
2. When several HSMCI (x HSMCI) are embedded in a product, MCCK refers to HSMCIx_CK, MCCDA to
HSMCIx_CDA, MCDAy to HSMCIx_DAy.
Table 34-5. SD Memory Card Bus Signals
Pin
Number
Name Type
(1)
Description HSMCI Pin Name
(2)
(Slot z)
1 CD/DAT[3] I/O/PP Card detect/ Data line Bit 3 MCDz3
2 CMD PP Command/response MCCDz
3 VSS1 S Supply voltage ground VSS
4 VDD S Supply voltage VDD
5 CLK I/O Clock MCCK
6 VSS2 S Supply voltage ground VSS
7 DAT[0] I/O/PP Data line Bit 0 MCDz0
8 DAT[1] I/O/PP Data line Bit 1 or Interrupt MCDz1
9 DAT[2] I/O/PP Data line Bit 2 MCDz2
MCCDA
MCDA0
MCCK
HSMCI
2345617
MMC1
9 1011 1213 8
2345617
MMC2
9 1011 1213 8
2345617
MMC3
9 1011 1213 8
23456178
SD CARD
9