ATtiny1624/1626/1627
Features
- UPDI One-Wire Interface for External
Programming and On-Chip-Debugging (OCD)
- Enable programming by high-voltage
or fuse
- Uses the RESET
pin of the device for
programming
- No GPIO pins occupied during the
operation
- Asynchronous half-duplex UART
protocol towards the programmer
- Programming:
- Built-in error detection and error
signature generation
- Override of response generation
for faster programming
- Debugging:
- Memory-mapped access to device
address space (NVM, RAM, I/O)
- No limitation on the device clock
frequency
- Unlimited number of user program
breakpoints
- Two hardware breakpoints
- Support for advanced OCD features
- Run-time readout of the CPU
Program Counter (PC), Stack Pointer (SP) and Status Register (SREG) for code
profiling
- Detection and signalization
of the Break/Stop condition in the CPU
- Program flow control for
Run, Stop and Reset debug instructions
- Nonintrusive run-time chip
monitoring without accessing the system registers
- Interface for reading the result
of the CRC check of the Flash on a locked device