1.7.2 Programming Interface to Target Device
The programmer supports the following programming interfaces to the Target Device:
#
Programming Family
Interface
Description / Comment
1
LV SPI
AT89S
AT90S
AT90USB
AT90CAN
Atmel Low Voltage Serial Programming Mode
?
Atmel 3-wire SPI interface (SCK, MOSI, MISO )
?
Target Device RESET
?
Works at target voltage (no Vpp required)
AT90PWM
ATmega
ATmega PICO
ATtiny
Zensys
2
HV SPI (+12V
Vpp)
ATtiny
Atmel High Voltage Serial Programming Mode
?
Atmel 4-wire SPI Interface (SCK, MOSI, MISO, MOSI2)
?
+12V Vpp is applied to the RESET pin to enter High
Voltage Serial Programming Mode
?
?
Requires different connections to Target Device
compared with LV SPI.
Requires all pins of target device to be accessible by
the programmer.
3
UART Boot
T89C51Rx2
Atmel / Philips UART Boot Loader Interface
Loader
T89C51AC2
T89C51Ix2
?
?
Uses RXD, TXD, PSEN, and Target Device RESET pin
TTL Levels from programmer to Target System
T89C51CC01
P89C51Rx2
P89C66xxx
4
JTAG
ATmega
Atmel ATmega AVR – JTAG ISP Interface
(Atmel AVR)
AT90USB
AT90CAN
?
?
Uses same connector as Atmel JTAG ICE
A chargeable license upgrade is required to enable the
ATmega PICO
?
ATmega JTAG ISP libraries.
Supports JTAG Chain Mode programming
5
I2C
AT24Cxxx
AT24HCxxx
AT34Cxxx
I2C 2-wire Interface
?
There is no dedicated connector for I2C programming
so it is necessary to re-use either an SPI or JTAG
connector for I2C.
?
The programmers uses the following I/O pins for I2C:
o
o
SDA (SPI MOSI pin)
SCL (SPI SCK pin)
?
External pull-up resistors (eg. 4k7) are required on the
SDA and SCL lines. These can be fitted on the IO-CON
Module, Test Fixture or Target System.
Please refer to the separate manual ‘PPM3 I/O Connector Modules’ for information on which ISP
Header to use for the required programming interface.
16
PPM3 MKII Programmer - User Guide - V1.04 - 10 th May 2008
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