ATAVRZRAVEN Atmel, ATAVRZRAVEN Datasheet - Page 10

• Manufacturer Part Number: ATAVRZRAVEN
• Description: Development Tools & Eval/Demo Boards
• Manufacturer: Atmel

Specifications of ATAVRZRAVEN

• Silicon Manufacturer: Atmel
• Silicon Core Number: ATmega1280, ATmega1280R231 And ATmega128RZAV
• Kit Contents: 2x AVR Raven Boards, USB Stick, PC Software
• Silicon Family Name: AVR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.3.1 External Memory Interface
4.3.2 Serial Interface
4.3.3 Programming Interface
4.3.4 LEDs
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AVR2016
Figure 4-2 RZRAVEN Interfaces - back
When necessary the AT90USB1287’s 8k Bytes of internal SRAM can be extended
through the AVR external memory interface. The suggested external SRAM is 32k
Bytes and is available from address 0x8000 to 0xFFFF giving a total of 40k Bytes
when assembled.
Suggested latch and RAM:
The USART on the AT90USB1287 is routed to J4 on the RZRAVEN’s backside. J4 is
implemented as three large pads (RX-TX-GND) where the user can solder in wires
and route the signal to his or her preference. The RX-TX signals are TTL level, so an
external level converter must be connected if RS232 levels are necessary.
A JTAG interface is provided for the AT90USB1287 microcontroller. The interface is
available through a 50-mil spaced 10-pin dual row header. The RZRAVEN does not
come with the header mounted. So it is up to the user populating it. Wires could also
be soldered in instead of the dual row headers. A total of 5 50-mil pin headers and
one 50-mil to 100-mil converter are supplied with the RZRAVEN kit.
4 LEDs is assembled on the board:
Table 4-1. AT90USB1287 LEDs
LED
Blue (D1)
Red (D2)
Green (D3)
Orange (D4)
•
•
74AHC573PW.
BS62UV256TCP-10
AT90USB1297 Port Pin
PORTD7
PORTD5
PORTE7
PORTE6
.
Comment
Turn LED on by pulling port pin high
Turn LED on by pulling port pin low
Turn LED on by pulling port pin low
Turn LED on by pulling port pin low
8117C-AVR-03/08