AT91FR40162S-CJ Atmel, AT91FR40162S-CJ Datasheet - Page 149
AT91FR40162S-CJ
Manufacturer Part Number
AT91FR40162S-CJ
Description
IC ARM MCU FLASH 1K 121BGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91FR40162S-CJ.pdf
(210 pages)
Specifications of AT91FR40162S-CJ
Core Processor
ARM7
Core Size
16/32-Bit
Speed
75MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
2MB (1M x 16)
Program Memory Type
FLASH
Ram Size
256K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
121-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91FR40162S-CJ
Manufacturer:
ATMEL
Quantity:
455
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18.3.2
6174B–ATARM–07-Nov-05
Clock Selection
At block level, input clock signals of each channel can either be connected to the external inputs
TCLK0, TCLK1 or TCLK2, or be connected to the configurable I/O signals TIOA0, TIOA1 or
TIOA2 for chaining by programming the TC_BMR (Block Mode).
Each channel can independently select an internal or external clock source for its counter:
The selected clock can be inverted with the CLKI bit in TC_CMR (Channel Mode). This allows
counting on the opposite edges of the clock.
The burst function allows the clock to be validated when an external signal is high. The BURST
parameter in the Mode Register defines this signal (none, XC0, XC1, XC2).
Note:
Figure 18-2. Clock Selection
• Internal clock signals: MCK/2, MCK/8, MCK/32,
• External clock signals: XC0, XC1 or XC2
MCK/128, MCK/1024
In all cases, if an external clock is used, the duration of each of its levels must be longer than the
system clock (MCK) period. The external clock frequency must be at least 2.5 times lower than the
system clock (MCK).
MCK/2
MCK/8
MCK/32
MCK/128
MCK/1024
XC0
XC1
XC2
1
CLKS
BURST
AT91FR40162S Preliminary
CLKI
Selected
Clock
149
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