Datasheet

609
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
34.6.3 Interrupt
The HSMCI interface has an interrupt line connected to the interrupt controller.
Handling the HSMCI interrupt requires programming the interrupt controller before configuring the HSMCI.
34.7 Bus Topology
Figure 34-3. High Speed MultiMedia Memory Card Bus Topology
The High Speed MultiMedia Card communication is based on a 13-pin serial bus interface. It has three communication
lines and four supply lines.
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 34-3. Peripheral IDs
Instance ID
HSMCI0 12
HSMCI1 26
Table 34-4. Bus Topology
Pin
Number Name Type
(1)
Description
HSMCI Pin Name
(2)
(Slot z)
1 DAT[3] I/O/PP Data MCDz3
2 CMD I/O/PP/OD 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 0 MCDz0
8 DAT[1] I/O/PP Data 1 MCDz1
9 DAT[2] I/O/PP Data 2 MCDz2
10 DAT[4] I/O/PP Data 4 MCDz4
11 DAT[5] I/O/PP Data 5 MCDz5
12 DAT[6] I/O/PP Data 6 MCDz6
13 DAT[7] I/O/PP Data 7 MCDz7
2345617
MMC
91011 12138