ata6603 ATMEL Corporation, ata6603 Datasheet - Page 301
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ata6603
Manufacturer Part Number
ata6603
Description
Microcontroller With Lin Transceiver, 5v Regulator And Watchdog
Manufacturer
ATMEL Corporation
Datasheet
1.ATA6603.pdf
(360 pages)
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4.24.2.1
4.24.3
4.24.3.1
4.24.3.2
4921D–AUTO–08/07
Signature Bytes
Latching of Fuses
ATA6602 Signature Bytes
ATA6603 Signature Bytes
Table 4-118. Fuse Low Byte
Note:
The status of the Fuse bits is not affected by Chip Erase. Note that the Fuse bits are locked if
Lock bit1 (LB1) is programmed. Program the Fuse bits before programming the Lock bits.
The fuse values are latched when the device enters programming mode and changes of the
fuse values will have no effect until the part leaves Programming mode. This does not apply to
the EESAVE Fuse which will take effect once it is programmed. The fuses are also latched on
Power-up in Normal mode.
All Atmel microcontrollers have a three-byte signature code which identifies the device. This
code can be read in both serial and parallel mode, also when the device is locked. The three
bytes reside in a separate address space.
Low Fuse Byte
CKDIV8
CKOUT
SUT1
SUT0
CKSEL3
CKSEL2
CKSEL1
CKSEL0
1. 0x000: 0x1E (indicates manufactured by Atmel).
2. 0x001: 0x93 (indicates 8KB Flash memory).
3. 0x002: 0x0A (indicates ATA6602 device when 0x001 is 0x93).
1. 0x000: 0x1E (indicates manufactured by Atmel).
2. 0x001: 0x94 (indicates 16KB Flash memory).
3. 0x002: 0x06 (indicates ATA6603 device when 0x001 is 0x94).
(3)
(4)
1. The default value of SUT1..0 results in maximum start-up time for the default clock source.
2. The default setting of CKSEL3..0 results in internal RC Oscillator @ 8 MHz. See
3. The CKOUT Fuse allows the system clock to be output on PORTB0. See
4. See
See
page 55
on page 58
Table 4-12 on page 55
“System Clock Prescaler” on page 58
for details.
for details.
Bit No
7
6
5
4
3
2
1
0
for details.
Description
Divide clock by 8
Clock output
Select start-up time
Select start-up time
Select Clock source
Select Clock source
Select Clock source
Select Clock source
for details.
ATA6602/ATA6603
0 (programmed)
0 (programmed)
0 (programmed)
Default Value
0 (programmed)
1 (unprogrammed)
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
“Clock Output Buffer”
(1)
(2)
(2)
(2)
Table 4-11 on
(1)
(2)
301
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