Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO データシート
製品コード
ATSAM4E-XPRO
1105
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
41.6
Product Dependencies
41.6.1 I/O Lines
The pins used for interfacing the High Speed MultiMedia Cards or SD Cards are multiplexed with PIO lines. The
programmer must first program the PIO controllers to assign the peripheral functions to HSMCI pins.
programmer must first program the PIO controllers to assign the peripheral functions to HSMCI pins.
41.6.2 Power Management
The HSMCI is clocked through the Power Management Controller (PMC), so the programmer must first configure
the PMC to enable the HSMCI clock.
the PMC to enable the HSMCI clock.
41.6.3 Interrupt
The HSMCI has an interrupt line connected to the interrupt controller.
Handling the HSMCI interrupt requires programming the interrupt controller before configuring the HSMCI.
41.7
Bus Topology
Figure 41-3.
High Speed MultiMedia Memory Card Bus Topology
Table 41-2.
I/O Lines
Instance
Signal
I/O Line
Peripheral
HSMCI
MCCDA
PA28
C
HSMCI
MCCK
PA29
C
HSMCI
MCDA0
PA30
C
HSMCI
MCDA1
PA31
C
HSMCI
MCDA2
PA26
C
HSMCI
MCDA3
PA27
C
Table 41-3.
Peripheral IDs
Instance
ID
HSMCI
16
2 3 4 5 6
1
7
MMC
9 10 11
1213 8