AT91SAM7A1-EK Atmel, AT91SAM7A1-EK Datasheet - Page 17

• 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

3.11
3.12
AT91SAM7A1-EK Evaluation Board User Guide
ICE Interface
Default Strap
Configuration
An ARM
interface to the JTAG inputs on the AT91SAM7A1 device. This allows code to be devel-
oped on the board without the use of system resources such as memory and serial
ports. A mini ICE interface is embedded on the board. It is accessed by a parallel port
connector (J12).
Note:
For more details, refer to Figure 4-7.
Table 3-12. Default Strap Configuration
Schematic
Figure 4-3
Figure 4-4
Figure 4-6
Figure 4-7
Figure 4-8
To use a standard external ICE interface in target powered mode, it is neces-
sary to close the strap E25 that enables the VCC power supply on the JTAG
port.
®
-standard 20-pin box header (J11) is provided to enable connection of an ICE
Strap/Jumper
E26
E10
E16
E25
J13
J14
J15
E1
E2
E3
E7
E8
E9
E5
E6
J3
J9
Configuration
1 - 2 closed
1 - 2 closed
1 - 2 closed
1 - 2 closed
2 - 3 closed
2 - 3 closed
2 - 3 closed
2 - 3 closed
1 - 2 closed
2 - 3 open
2 - 3 open
2 - 3 open
2 - 3 open
1 - 2 open
3 - 4 open
1 - 2 open
1 - 2 open
1 - 2 open
2 - 3 open
Closed
Closed
Closed
Closed
Closed
Closed
Closed
Closed
VDDIO connected to VDDPERIPH
Flash pin A19 connected to signal
AVDDCORE connected to AVDD
NCS-FLASH connected to NCS0
NCS-SRAM connected to NCS1
VDDPERIPH connected to VDD
Power on the JTAG connection
E4-1 (LCD pin 1) connected to
E4-2 (LCD pin 2) connected to
VDDCORE connected to VDD
1 LIN and 2 RS-232 interfaces
MA2 EN_pin connected to
AGND connected to GND
A20/CS7 (whole memory
VDDPERIPH
Description
accessible)
NRESET
GND
6114A–ATARM–09/04
3-7