ATA6603P-PLQW Atmel, ATA6603P-PLQW Datasheet - Page 181
ATA6603P-PLQW
Manufacturer Part Number
ATA6603P-PLQW
Description
MCU W/LIN TXRX REG WTCHDG 48-QFN
Manufacturer
Atmel
Series
AVR® ATA66 LIN-SBCr
Datasheet
1.ATA6603P-PLQW.pdf
(360 pages)
Specifications of ATA6603P-PLQW
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
23
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-QFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATA6603P-PLQW
Manufacturer:
ATMEL
Quantity:
2 000
Part Number:
ATA6603P-PLQW
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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4.15.10
4.15.10.1
4921E–AUTO–09/09
Timer/Counter Prescaler
General Timer/Counter Control Register – GTCCR
Figure 4-64. Prescaler for Timer/Counter2
The clock source for Timer/Counter2 is named clk
system I/O clock clk
clocked from the TOSC1 pin. This enables use of Timer/Counter2 as a Real Time Counter
(RTC). When AS2 is set, pins TOSC1 and TOSC2 are disconnected from Port C. A crystal can
then be connected between the TOSC1 and TOSC2 pins to serve as an independent clock
source for Timer/Counter2. The Oscillator is optimized for use with a 32.768 kHz crystal. Apply-
ing an external clock source to TOSC1 is not recommended.
For Timer/Counter2, the possible prescaled selections are: clk
clk
Setting the PSRASY bit in GTCCR resets the prescaler. This allows the user to operate with a
predictable prescaler.
Read/Write
Initial Value
• Bit 1 – PSRASY: Prescaler Reset Timer/Counter2
T2S
When this bit is one, the Timer/Counter2 prescaler will be reset. This bit is normally cleared
immediately by hardware. If the bit is written when Timer/Counter2 is operating in asynchro-
nous mode, the bit will remain one until the prescaler has been reset. The bit will not be
cleared by hardware if the TSM bit is set. Refer to the description of the
Timer/Counter Synchronization Mode” on page 131
Synchronization mode.
Bit
/128, clk
T2S
TSM
R/W
PSRASY
TOSC1
7
0
clk I/O
CS20
CS21
CS22
/256, and clk
AS2
IO
. By setting the AS2 bit in ASSR, Timer/Counter2 is asynchronously
R
6
–
0
T2S
clk
/1024. Additionally, clk
T2S
R
5
–
0
Clear
R
TIMER/COUNTER2 CLOCK SOURCE
4
–
0
0
T2S
10-BIT T/C PRESCALER
. clk
R
3
–
0
clk
T2S
T2S
T2
for a description of the Timer/Counter
as well as 0 (stop) may be selected.
ATA6602/ATA6603
is by default connected to the main
R
2
–
0
T2S
PSRASY PSRSYNC GTCCR
/8, clk
R/W
1
0
T2S
R/W
/32, clk
“Bit 7 – TSM:
0
0
T2S
/64,
181
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