Atmel ATSTK500 500 Starter kit and development system. ATSTK500 ATSTK500 데이터 시트

1925C–AVR–3/03

The signals AUXI1, AUXI0, AUXO1, and AUXO0 are intended for future use. Do not
connect these signals to your application.

The DATA[7:0] and CT[7:1] signals are also found on the Prog Data and Prog Ctrl con-
nectors. These signals and connectors are explained in Section 3.10 on page 3-25.

The BSEL2 signal is the same as that found on the BSEL2 jumper. This jumper is
explained in Section 3.8.5 on page 3-22.

The SI, SO, SCK, and CS signals are connected to the DataFlash. Use of the DataFlash
is described in Section 3.6 on page 3-6.

NC means that this pin is not connected.

The remaining signals are equal to those found on the PORT connectors, explained in
Section 3.4 on page 3-3.

DATA, CT, and AUX signals are based on 5V CMOS logic. No voltage conver-
sion to adapt to VTG is done on these signals.

The Prog Ctrl and Prog Data headers are used for High-voltage Programming of the tar-
get AVR device. The placement of the headers is shown in Figure 3-33. During parallel
High-voltage Programming, the Prog Ctrl signals are routed to PORTD of the target
device. The Prog Data signals are routed to PORTB. See Section 3.7.2 on page 3-11 for
a complete description of High-voltage Programming. The pinouts of the Prog Ctrl and
Prog Data headers are shown in Figure 3-36 and Figure 3-37. For more information
about High-voltage Programming of AVR devices, see the programming section of each
AVR datasheet.

Prog Ctrl and Data connectors are connected directly to the master microcon-
troller without level converters. This means that these signals are always 5V 
logic.

Figure 3-36.  Prog Ctrl Header Pinout

The Prog Ctrl signals are normally used for the control signals when parallel High-
voltage Programming an AVR device.

All Prog Ctrl signals are based on 5V CMOS logic. No voltage conversion to 
adapt to VTG is done on these signals.

CT1(RDY/BSY)

CT3(/WR)

CT5(XA0)

CT7(PAGEL)

NC

1   2

NC

(OE)CT2

(BS1)CT4

(XA1)CT6

GND