ATmega32C1 Automotive Atmel Corporation, ATmega32C1 Automotive Datasheet - Page 289
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ATmega32C1 Automotive
Manufacturer Part Number
ATmega32C1 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA16M1_AUTOMOTIVE.pdf
(12 pages)
3.ATMEGA16M1_AUTOMOTIVE.pdf
(25 pages)
4.ATMEGA16M1_AUTOMOTIVE.pdf
(367 pages)
Specifications of ATmega32C1 Automotive
Flash (kbytes)
32 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
12
Hardware Qtouch Acquisition
No
Max I/o Pins
27
Ext Interrupts
27
Usb Speed
No
Usb Interface
No
Spi
1
Uart
1
Can
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
125
Analog Comparators
4
Resistive Touch Screen
No
Dac Channels
1
Dac Resolution (bits)
10
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
2
Eeprom (bytes)
1024
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 150
I/o Supply Class
2.7 to 5.5
Operating Voltage (vcc)
2.7 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
1
Pwm Channels
4
32khz Rtc
No
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #2
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #3
- ATMEGA16M1_AUTOMOTIVE PDF datasheet #4
- Current page: 289 of 367
- Download datasheet (7Mb)
24.7.10
7647G–AVR–09/11
Reading the Signature Row from Software
When an LPM instruction is executed within three cycles after the BLBSET and SPMEN bits
are set in the SPMCSR, the value of the Fuse Low byte (FLB) will be loaded in the destination
register as shown below. Refer to
ping of the Fuse Low byte.
Similarly, when reading the Fuse High byte, load 0x0003 in the Z-pointer. When an LPM
instruction is executed within three cycles after the BLBSET and SPMEN bits are set in the
SPMCSR, the value of the Fuse High byte (FHB) will be loaded in the destination register as
shown below. Refer to
Fuse High byte.
When reading the Extended Fuse byte, load 0x0002 in the Z-pointer. When an LPM instruction
is executed within three cycles after the BLBSET and SPMEN bits are set in the SPMCSR, the
value of the Extended Fuse byte (EFB) will be loaded in the destination register as shown
below. Refer to
Fuse byte.
Fuse and Lock bits that are programmed, will be read as zero. Fuse and Lock bits that are
unprogrammed, will be read as one.
To read the Signature Row from software, load the Z-pointer with the signature byte address
given in
LPM instruction is executed within three CPU cycles after the SIGRD and SPMEN bits are set
in SPMCSR, the signature byte value will be loaded in the destination register. The SIGRD
and SPMEN bits will auto-clear upon completion of reading the Signature Row Lock bits or if
no LPM instruction is executed within three CPU cycles. When SIGRD and SPMEN are
cleared, LPM will work as described in the Instruction set Manual.
Note:
Table 24-5.
Note:
Signature Byte
Device Signature Byte 1
Device Signature Byte 2
Device Signature Byte 3
RC Oscillator Calibration Byte
TSOFFSET Temp Sensor Offset
TSGAIN Temp Sensor Gain
Bit
Rd
Bit
Rd
Bit
Rd
ware is ready for a new operation.
All other addresses are reserved for future use.
Before attempting to set SPMEN it is important to test this bit is cleared showing that the hard-
Table 24-5 on page 289
Signature Row Addressing
FLB7
FHB7
Table 25-4 on page 298
7
7
7
–
Table 25-6 on page 299
FLB6
FHB6
6
6
6
–
FLB5
FHB5
and set the SIGRD and SPMEN bits in SPMCSR. When an
Table 25-4 on page 298
5
5
5
–
Atmel ATmega16/32/64/M1/C1
for detailed description and mapping of the Extended
FHB4
FLB4
4
4
4
–
for detailed description and mapping of the
FHB3
EFB3
FLB3
3
3
3
for a detailed description and map-
FHB2
EFB2
FLB2
2
2
2
Z-Pointer Address
0x0000
0x0002
0x0004
0x0001
0x0005
0x0007
FHB1
EFB1
FLB1
1
1
1
FHB0
EFB0
FLB0
0
0
0
289
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