Requirements
AT91CAP9-STK Starter Kit User Guide
2-5
6351B–CAP–27-Jun-08
2.3.5
EI5: SD Card Slot
The AT91CAP9-STK board implements a 12-pin short type SDCARD slot on the bottom side.
2.3.6
EI6: Two USB Host Interfaces
Two USB HOST connectors are available on a sign dual-port Type A connector.
2.3.7
EI7: USB High Speed Device Interface
One USB Device High/Full Speed connector is available on a Type B connector.
Table 2-4. SD CARD Pinout
Pin
Signal Name
Description
Type
Level
1
MCI_DA3
Data 3
I/O
3.3V
2
MCI_CDA
Command/response
I/O open-drain
3.3V
3
GND
Electrical ground
-
-
4
3V3
3.3V power supply
O
3.3V
5
MCI_CK
Clock
O
3.3V
6
GND
Electrical ground
-
-
7
MCI_DA0
DATA 0
I/O
3.3V
8
MCI_DA1
DATA 1
I/O
3.3V
9
MCI_DA2
DATA 2
I/O
3.3V
10
MCI_CD
Card Detect
I
3.3V
11
GND
Electrical ground
-
-
12
NC
-
-
-
Table 2-5. Dual-port Type A Connector Pinout
Pin
Signal Name
Description
Type
A1
5V
5V power supply (fuse 500mA)
O
A2
HDMA
Negative differential port A
I/O
A3
HDPA
Positive differential port A
I/O
A4
GND
Electrical ground
-
B1
5V
5V power supply (fuse 500mA)
O
B2
HDMB
Negative differential port B
I/O
B3
HDPB
Positive differential port B
I/O
B4
GND
Electrical ground
-
1 to 4
GND
Electrical ground
-
Table 2-6. Type B Connector Pinout
Pin
Signal Name
Description
Type
Level
1
VBUS
5V supply
I
1
2
HSDM / FSDM
Negative differential port A
I/O
2
3
HSDP / FSDP
Positive differential port A
I/O
3
4, 5, 6
GND
Electrical
-
4, 5, 6