AT90PWM216-16SE ATMEL [ATMEL Corporation], AT90PWM216-16SE Datasheet - Page 294

• Manufacturer Part Number: AT90PWM216-16SE
• Description: 8-bit Microcontroller with 16K Bytes In-System Programmable flash
• Manufacturer: ATMEL [ATMEL Corporation]

25.8.13
25.8.14
25.8.15
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AT90PWM216/316
Reading the Signature Bytes
Reading the Calibration Byte
Parallel Programming Characteristics
Figure 25-6. 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 289
The algorithm for reading the Calibration byte is as follows (refer to
page 289
Figure 25-7. Parallel Programming Timing, Including some General Timing Requirements
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte (0x00 - 0x02).
3. Set OE to “0”, and BS1 to “0”. The selected Signature byte can now be read at DATA.
4. Set OE to “1”.
1. A: Load Command “0000 1000”.
2. B: Load Address Low Byte, 0x00.
3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA.
4. Set OE to “1”.
(DATA, XA0/1, BS1, BS2)
for details on Command and Address loading):
for details on Command and Address loading):
Data & Contol
Extended Fuse Byte
Fuse Low Byte
RDY/BSY
Fuse High Byte
PAGEL
XTAL1
Lock Bits
WR
t
t
BVPH
DVXH
BS2
BS2
t
t
XHXL
PHPL
0
1
0
1
t
t
t
t
XLDX
PLBX
XLWL
PLWL
t
BVWL
BS1
t
WLWH
WLRL
0
1
“Programming the Flash” on
“Programming the Flash” on
t
WLBX
DATA
7710D–AVR–08/09
t
WLRH