ATSTK520 Atmel, ATSTK520 Datasheet - Page 13

• Manufacturer Part Number: ATSTK520
• Description: ADAPTER KIT FOR 90PWM
• Manufacturer: Atmel

Specifications of ATSTK520

• Accessory Type: STK500 Expansion Module
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90PWM2, AT90PWM3
• Kit Contents: Board Cable Docs
• Rohs Compliant: Yes
• For Use With/related Products: 24-Pin and 32-Pin AT90PWM AVR Devices
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.5
STK520 User Guide
DALI Interface
STK520 includes a non-isolated DALI Interface. The DALI Interface converts AVR RxD
and TxD pin level to DALI compatible electrical level. It acts as a duplexer, so it inter-
faces the two RxD and TxD lines to one DALI line.
To use the DALI Interface, it is necessary to mount TxD and RxD jumpers. When these
jumpers are removed, the AVR is not inflenced by the interface. The TxD and RxD AVR
pins are also available on STK500 PD3 and PD4 connectors.
Thanks to a diode bridge, the DALI connector is not polarized.
Figure 2-8. DALI
Figure 2-9. DALI Connector
AVR
TxD
RxD
PD4 PD3
JP5
JP4
TX Led &
Test Point
RX Led &
Test Point
DALI Transmitter
DALI Receiver
Using the STK520 Top Module
Bridge
Rectifier
7510A–AVR–08/05
DALI Line
2-12
J3