ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 271

• Manufacturer Part Number: ATMEGA16-16AU SL602
• Manufacturer: Atmel

Reading the Signature
Bytes
Reading the
Calibration Byte
Parallel Programming
Characteristics
2466T–AVR–07/10
Figure 132. Mapping between BS1, BS2 and the Fuse- and Lock Bits during Read
The algorithm for reading the Signature bytes is as follows (refer to
page 266
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte ($00 - $02).
3. Set OE to “0”, and BS1 to “0”. The selected Signature byte can now be read at DATA.
4. Set OE to “1”.
The algorithm for reading the Calibration byte is as follows (refer to
page 266
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte, $00.
3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4. Set OE to “1”.
Figure 133. Parallel Programming Timing, Including some General Timing Requirements
(DATA, XA0/1, BS1, BS2)
for details on Command and Address loading):
for details on Command and Address loading):
Data & Contol
RDY/BSY
PAGEL
XTAL1
Fuse High Byte
Fuse Low Byte
WR
Lock Bits
BS2
t
t
BVPH
DVXH
t
t
XHXL
PHPL
0
1
t
t
t
t
XLDX
PLBX
XLWL
PLWL
t
BVWL
BS1
t
WL WH
WLRL
0
1
“Programming the Flash” on
“Programming the Flash” on
ATmega16(L)
DATA
t
WLBX
t
WLRH
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