AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 27

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

6481B–ATARM–27-Nov-09
Board Description
4.2.11
4.2.12
4-18
Two Wire Interface (TWI)
SD/MMC Interface
The SAM9G45 has a full speed (400 kHz) master/slave I2C Serial Controller. The controller is fully com-
patible with the industry standard I2C and SMBus Interfaces. This port is used to interface with the on-
board Serial DataFlash, ISI and TV encoder interface.
Figure 4-15. TWI
The SAM9G45-EKES has two high-speed 8-bit multimedia interfaces MMC/MMCPlus v4.1. The first
interface is used as an 8-bit interface (MCI1), connected to a CE-ATA connector footprint and an 8-bit
SD/MMC card slot. The second interface is used as a 4-bit interface (MCI0), connected to a 4-bit
SD/MMC card slot.
The users must provide their own compatible cards for use with these connectors.
Please note that the power is connected to VCC, which is 3.3 volts.
PA20
PA21
(TW CK0)
(TW DO)
3V3
C111
C111
100nF
100nF
6
5
8
4
AT24C512BN-SH25-B
AT24C512BN-SH25-B
SERIAL EEPROM
SCL
SDA
VCC
GND
MN13
MN13
WP
A0
A1
A3
1
2
3
7
R54
R54
10K
10K
3V3
AT91SAM9G45-EKES User Guide
JP13
JP13