ATtiny167 Automotive Atmel Corporation, ATtiny167 Automotive Datasheet - Page 160

• Manufacturer Part Number: ATtiny167 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny167 Automotive

• Flash (kbytes): 16 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 8
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• 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: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

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ATtiny87/ATtiny167
Table 14-2.
• Bit 1 – USICLK: Clock Strobe
Writing a one to this bit location strobes the USI Data Register to shift one step and the coun-
ter to increment by one, provided that the USICS1..0 bits are set to zero and by doing so the
software clock strobe option is selected. The output will change immediately when the clock
strobe is executed, i.e., in the same instruction cycle. The value shifted into the USI Data Reg-
ister is sampled the previous instruction cycle. The bit will be read as zero.
When an external clock source is selected (USICS1 = 1), the USICLK function is changed
from a clock strobe to a Clock Select Register. Setting the USICLK bit in this case will select
the USITC strobe bit as clock source for the 4-bit counter (see
• Bit 0 – USITC: Toggle Clock Port Pin
Writing a one to this bit location toggles the USCK/SCL value either from 0 to 1, or from 1 to 0.
The toggling is independent of the setting in the Data Direction Register, but if the PORT value
is to be shown on the pin the DDB2 must be set as output (to one). This feature allows easy
clock generation when implementing master devices. The bit will be read as zero.
When an external clock source is selected (USICS1 = 1) and the USICLK bit is set to one,
writing to the USITC strobe bit will directly clock the 4-bit counter. This allows an early detec-
tion of when the transfer is done when operating as a master device.
USICS1
0
0
0
1
1
1
1
USICS0
Relations between the USICS1..0 and USICLK Setting
0
0
1
0
1
0
1
USICLK
X
0
1
0
0
1
1
USI Data Register Clock
Source
No Clock
Software clock strobe
(USICLK)
Timer/Counter0 Compare
Match
External, positive edge
External, negative edge
External, positive edge
External, negative edge
Table
4-bit Counter Clock Source
No Clock
Software clock strobe
(USICLK)
Timer/Counter0 Compare
Match
External, both edges
External, both edges
Software clock strobe (USITC)
Software clock strobe (USITC)
14-2).
7728G–AVR–06/10