ATMEGA162-16MJ Atmel, ATMEGA162-16MJ Datasheet - Page 165
ATMEGA162-16MJ
Manufacturer Part Number
ATMEGA162-16MJ
Description
IC MCU AVR 16K 5V 16MHZ 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA162-16MJ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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Data Modes
2513K–AVR–07/09
There are four combinations of SCK phase and polarity with respect to serial data, which are
determined by control bits CPHA and CPOL. The SPI data transfer formats are shown in
73
ensuring sufficient time for data signals to stabilize. This is clearly seen by summarizing
66
Table 69. CPOL and CPHA Functionality
Figure 73. SPI Transfer Format with CPHA = 0
Figure 74. SPI Transfer Format with CPHA = 1
and
and
CPOL=0, CPHA=0
CPOL=0, CPHA=1
CPOL=1, CPHA=0
CPOL=1, CPHA=1
Table
Figure
SCK (CPOL = 0)
mode 0
SCK (CPOL = 1)
mode 2
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SCK (CPOL = 0)
mode 1
SCK (CPOL = 1)
mode 3
SAMPLE I
MOSI/MISO
CHANGE 0
MOSI PIN
CHANGE 0
MISO PIN
SS
SS
MSB first (DORD = 0)
LSB first (DORD = 1)
MSB first (DORD = 0)
LSB first (DORD = 1)
67, as done below:
74. Data bits are shifted out and latched in on opposite edges of the SCK signal,
MSB
LSB
MSB
LSB
Sample (Falling)
Sample (Rising)
Leading Edge
Setup (Falling)
Setup (Rising)
Bit 6
Bit 1
Bit 6
Bit 1
Bit 5
Bit 2
Bit 5
Bit 2
Bit 4
Bit 3
Sample (Falling)
Sample (Rising)
Bit 4
Bit 3
Setup (Falling)
Trailing Edge
Setup (Rising)
Bit 3
Bit 4
Bit 3
Bit 4
Bit 2
Bit 5
Bit 2
Bit 5
ATmega162/V
Bit 1
Bit 6
SPI Mode
Bit 1
Bit 6
0
1
2
3
LSB
MSB
LSB
MSB
Figure
Table
165
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