ATAVRSB202 Atmel, ATAVRSB202 Datasheet - Page 223

• Manufacturer Part Number: ATAVRSB202
• Description: KIT BATT MGMT FOR ATMEGA32HVB
• Manufacturer: Atmel

Specifications of ATAVRSB202

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: *
• Primary Attributes: *
• Secondary Attributes: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.7.9
30.7.10
30.7.11
8042B–AVR–06/10
Programming the Fuse Low Bits
Programming the Fuse High Bits
Programming the Lock Bits
The algorithm for programming the Fuse Low bits is as follows (refer to
on page 219
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Give WR a negative pulse and wait for RDY/BSY to go high.
The algorithm for programming the Fuse High bits is as follows (refer to
Flash” on page 219
1. A: Load Command “0100 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs and bit n = “1” erases the Fuse bit.
3. Set BS1 to “1” and BS2 to “0”. This selects high data byte.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
5. Set BS1 to “0”. This selects low data byte.
Figure 30-7. Programming the FUSES Waveforms
The algorithm for programming the Lock bits is as follows (refer to
page 219
1. A: Load Command “0010 0000”.
2. C: Load Data Low Byte. Bit n = “0” programs the Lock bit. If LB mode 3 is programmed
3. Give WR a negative pulse and wait for RDY/BSY to go high.
The Lock bits can only be cleared by executing Chip Erase.
(LB1 and LB2 is programmed), it is not possible to program the Boot Lock bits by any
External Programming mode.
RESET +12V
RDY/BSY
for details on Command and Data loading):
PAGEL
XTAL1
DATA
XA1
XA0
BS1
BS2
WR
OE
for details on Command and Data loading):
0x40
A
for details on Command and Data loading):
DATA
C
Write Fuse Low byte
XX
0x40
A
DATA
C
Write Fuse high byte
XX
ATmega16HVB/32HVB
0x40
A
”Programming the Flash” on
DATA
”Programming the Flash”
C
Write Extended Fuse byte
XX
”Programming the
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