ATtiny11 datasheet(36/61 Pages) ATMEL

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Hardware Description

3-26

AVR STK500 User Guide

1925C–AVR–3/03

Figure 3-37. Prog Data Header Pinout

The Prog Data signals are used for the data bus when parallel High-voltage Program-

ming an AVR device. During ISP programming, DATA5 is used as MOSI, DATA6 is

used as MISO, and DATA7 is used for SCK.

Note:

All Prog Data signals are based on 5V CMOS logic. No voltage conversion to

adapt to VTG is done on these signals.

3.11

Miscellaneous

STK500 has 2 push buttons and 3 LEDs for special functions and status indication. The

following section explains these features. Figure 3-38 shows the placement of these

functions.

Figure 3-38. Special Functions and Status Indication LEDs

3.11.1

RESET Push Button

The RESET push button resets the target AVR device when pushed. The master micro-

controller is not controlled by the RESET push button. When the RESET jumper is not

mounted, the RESET push button is disabled.

DATA1

DATA3

DATA5

DATA7

DATA0

DATA2

DATA4

DATA6

GND

1 2

Target Power LED

RESET Push Button

Main Power LED

Status LED

Program Push Button

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