AT91SAM7A1-EK Atmel, AT91SAM7A1-EK Datasheet - Page 13

• Manufacturer Part Number: AT91SAM7A1-EK
• Description: BOARD EVAL FOR AT91SAM7A1
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM7A1-EK

• Contents: Evaluation Board, Parallel Cable and CD-ROM
• Processor To Be Evaluated: AT91SAM7A1
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: AT91SAM7A1
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.6
AT91SAM7A1-EK Evaluation Board User Guide
LIN Buses and
RS-232 Lines
Table 3-2. Pinout
The CAN bus resistive load is 60 Ohm. It is made up of two 120 Ohm resistors in paral-
lel. The recommended CAN bus load is 60 Ohm. Depending on the external input bus
resistor, users can disconnect resistors to achieve the correct bus load.
For more details, refer to Figure 4-5.
Via USART modules, the AT91SAM7A1-EK board provides the following:
or
or
Table 3-3. 2 LIN Buses and 1 RS-232 Interface
Table 3-4. 1 LIN Bus and 2 RS-232 Interfaces
2 LIN buses and 1 RS-232 line
1 LIN bus and 2 RS-232 lines
2 LIN and 1 RS-232 modem-compliant interfaces
Communication
Communication
RS232
RS232
RS232
Type
Type
LIN
LIN
LIN
SubD9 Pin
others
4
3
8
Connector
Connector
J19
J19
J4
J8
J6
J8
AT91SAM7A1
AT91SAM7A1
Peripheral
Peripheral
USART1
USART0
USART2
USART1
USART0
USART2
Not connected
Function
CAN-H
CAN-L
GND
No strap
E9: 3 - 4
E16: 2 -3
No strap
E9: 2 - 3
Closed
E5: 2 -3
E6: 2 -3
Straps
Closed
Straps
J9
J9
6114A–ATARM–09/04
E16: 1 - 2
No strap
E9: 2 - 3
No strap
E9: 3 - 4
E5: 1 - 2
E6: 1 - 2
Straps
Straps
Open
Open
3-3