ata6616 ATMEL Corporation, ata6616 Datasheet - Page 260
ata6616
Manufacturer Part Number
ata6616
Description
Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
Manufacturer
ATMEL Corporation
Datasheet
1.ATA6616.pdf
(310 pages)
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4.22.7.9
4.22.7.10
Figure 4-102. Programming the FUSES Waveforms
4.22.7.11
260
PAGEL / BS1
RESET +12V
XA1 / BS2
RDY/BSY
XTAL1
DATA
XA0
WR
OE
ATA6616/ATA6617 [Preliminary]
Programming the Fuse High Bits
Programming the Extended Fuse Bits
Programming the Lock Bits
0x40
A
DATA
The algorithm for programming the Fuse High bits is as follows (refer to
Flash” on page 256
The algorithm for programming the Extended Fuse bits is as follows (refer to
Flash” on page 256
The algorithm for programming the Lock bits is as follows (refer to
page 256
C
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.
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 “0” and BS2 to “1”. This selects extended data byte.
4. Give WR a negative pulse and wait for RDY/BSY to go high.
5. Set BS2 to “0”. This selects low data byte.
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.
4. The Lock bits can only be cleared by executing Chip Erase.
(LB1 and LB2 is programmed), it is not possible to re-program the Lock bits by any
External Programming mode.
Write Fuse Low byte
XX
for details on Command and Data loading):
for details on Command and Data loading):
for details on Command and Data loading):
0x40
A
DATA
C
b
b
b
”.
”.
”.
Write Fuse high byte
XX
DRAFT
0x40
A
“Programming the Flash” on
Write Extended Fuse byte
DATA
C
“Programming the
“Programming the
XX
9132A–AUTO–10/08
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