EQ-IOCON-3 Equinox Technologies, EQ-IOCON-3 Datasheet - Page 21

• Manufacturer Part Number: EQ-IOCON-3
• Description: MOD PPM3 CONN-3 I/O ATMEGA JTAG
• Manufacturer: Equinox Technologies

Specifications of EQ-IOCON-3

• Accessory Type: I/O Connector Module
• For Use With/related Products: PPM3-MK2
• Other names: 483-1005; EQ-IOCON-3

3.7 Equinox 10-way Header (UART Boot Loader)
This connection method is suitable for interfacing the programmer to a Target System which features
the following:
To implement this connection, simply plug the 10-way ISP cable into the ISP header marked ‘Equinox’
and plug the other end of the cable into the matching header on the Target System.
Please note:
The programmer interfaces to the Target System at TTL voltage levels. If the serial port to your Target
System is RS-232, you will need to convert the TTL levels from the programmer to RS-232 using an
external converter.
18
Pin
No
1
2
3
4
•
•
•
•
Programmer
Pin name
PROG_VCC
N/C
PROG_PSEN
PROG_TXD
Equinox 10-way IDC ISP Header
An Atmel Wireless T89C51Rx2 / CC01 microcontroller
A Philips P89C51Rx2 or P89C66x microcontroller
The relevant connections for in-system programming via the Boot Loader.
I/O Connector Modules (IO-CON) for the PPM3 Programming Module – V1.04 – 1
Programmer
Input / Output
P
-
O
O
Figure 4.7.1 – Equinox 10-way IDC Header (J8) viewed from
above
Warning!
Connect to
pin on
Target Device
TARGET_VCC Target Vcc
N/C
PSEN
RXD
1. It is possible for +12V to be output on pin 10 of this
2. Connecting to the wrong ISP Header may cause
connector when programming ATtiny11/12/15
devices.
catastrophic damage to the Programmer & Target
System
Description
This pin should be connected to the Target
System Vcc. This voltage could be used to
power the programmer depending on the
settings of the power switch/jumper on the
programmer.
Not connected
PSEN pin
This pin is driven LOW by the programmer
to enter ‘Boot Loader’ programming mode.
Programmer RXD (Transmit) pin
The programmer transmits serial data on
this pin to the Target Device RXD
(Receive) pin.
st
April 2008