ATA6617C_14 Datasheet, PDF (232/274 Pages) ATMEL Corporation – 8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Figure 4-103. Mapping Between BS1, BS2 and the Fuse and Lock Bits During Read
Fuse Low Byte
0
Extended Fuse Byte
1
BS2
Lock Bits
0
0
DATA
1
Fuse High Byte
1
BS1
BS2
4.22.7.13 Reading the Signature Bytes
The algorithm for reading the signature bytes is as follows (refer to Section 4.22.7.4 “Programming the Flash” on page 227
for details on command and address loading):
1. A: Load Command “0000 1000 _b”.
2. B: Load Address Low Byte (0x00 - 0x02).
3. Set OE to “0”, and BS to “0”. The selected signature byte can now be read at DATA.
4. Set OE to “1”.
4.22.7.14 Reading the 8MHz RC Oscillator Calibration Byte
The algorithm for reading the 8MHz RC oscillator calibration byte is as follows (refer to Section 4.22.7.4 “Programming the
Flash” on page 227 for details on command and address loading):
1. A: Load Command “0000 1000 _b”.
2. B: Load Address Low Byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The 8MHz RC oscillator calibration byte can now be read at DATA.
4. Set OE to “1”.
4.22.7.15 Reading the Temperature Sensor Parameter Bytes
The algorithm for reading the temperature sensor parameter bytes is as follows (refer to Section 4.22.7.4 “Programming the
Flash” on page 227 for details on command and address loading):
1. A: Load Command “0000 1000 _b”.
2. B: Load Address Low Byte, 0x0003 or 0x0005.
3. Set OE to “0”, and BS1 to “1”. The temperature sensor parameter byte can now be read at DATA.
4. Set OE to “1”.
232 ATA6616C/ATA6617C [DATASHEET]
9132I–AUTO–06/14