Usb Peripheral; Spi; Rs232; Sim Alternate Card - Atmel AT89STK-03 Hardware User's Manual

Hardware Description
2.4.2

USB Peripheral

2.4.3

SPI

2.4.4

RS232

2.4.5

SIM Alternate Card

2.4.6

PLL Filter

2-8
7609B–SCR–11/06
Name Color Description
General purpose led - Connected to P3.6 - Enabled by LED2 jumper or SW21
LED2 Green
solder pad
General purpose led - Connected to P3.7 - Enabled by LED3 jumper or SW22
LED3 Green
solder pad
General purpose led - Connected to P4.3 (Only on PLCC68 / VQFP64 packages)
LED4 Green
- Enabled by LED4 jumper
General purpose led - Connected to P4.4 (Only on PLCC68 / VQFP64 packages)
LED5 Green
- Enabled by LED5 jumper
General purpose led - Connected to P4.5 (Only on PLCC68 / VQFP64 packages)
LED6 Green
- Enabled by LED6 jumper or SW25 solder pad
Serial Transmission Line Status - Connected to TXD / P3.1 - Enabled by SW28
TX Green
solder pad
Serial Reception Line Status - Connected to RXD / P3.0 - Enabled by SW29
RX Red
solder pad
All the required hardware to develop a USB firmware is available and includes:
– a USB connector
– 2 test points D+ / D-
– a DETACH pushbutton which enables to connect / disconnect the pull-up on D+ and then to
simulate an USB Attach/Detach operation. This avoids removals and insertions of the USB
cable.
An SPI interface is available.
All the required hardware to manage a RS232C interface is available. Tx and Rx can be
connected to the LEDs (Rx and Tx) by means of SW28 and SW29 solder pads on solder
side of the board.
– 9 pin SUBD connector
– Transceiver MAX202
The following hardware is supplied:
– SIM connector
– power supply jumper
5V power supply
5V
3.3V
1. PLCC68 / VQFP64
PLL Filter is composed by C7, C10, R9
2. PLCC28
PLL filter is composed by C25, R16, C26.
SIM PWR
3.3V power supply
5V
3.3V
AT89STK-03 Hardware User Guide