ATSTK526 Atmel, ATSTK526 Datasheet - Page 14

• Manufacturer Part Number: ATSTK526
• Description: KIT STARTER FOR AT90USB82/162
• Manufacturer: Atmel
• Series: AVR®r
• Type: MCUr

Specifications of ATSTK526

• Contents: Starter Kit Board, Power Supply, Cable and Software
• Processor To Be Evaluated: AT90USB82/162
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Silicon Core Number: AT90USB82, AT90USB162
• Kit Contents: Board Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT90USB162, AT90USB82
• For Use With: ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.5.2
STK526 rev. B Hardware User Guide
RS-232C
The AT90USB82/162 is a microcontroller with an on-chip USART peripheral (USART1).
Only the asynchronous mode is supported by the STK526.
The STK526 is supplied with a RS-232 driver/receiver. One female DB9 connector
provides the RS-232 connections.
Figure 2-11 . RS-232 DB9 Connections
Figure 2-12 . Typical PC Connection Layout
CTS (AT90USBxxx)
RTS (AT90USBxxx)
RxD (AT90USBxxx)
TxD (AT90USBxxx)
STK526 / RS-232 DB9
Function
GND
RS-232 DB9 front view
5
9
Pin No
4
8
2
3
5
7
8
3
7
If Hardware Data Flow Control
2
6
1
pin 2
pin 3
pin 4
pin 6
pin 5
pin 7
pin 8
Pin No
2
3
5
7
8
PC / DB9 serial port
(COM1 or COMx)
RS-TxD
RS-RxD
GND
RS-CTS
RS-RTS
RxD (PC)
RTS (PC)
CTS (PC)
TxD (PC)
Using the STK526
Function
GND
7709B–AVR–07/08
2-13