AT90PWM2B-16SE ATMEL [ATMEL Corporation], AT90PWM2B-16SE Datasheet - Page 68
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AT90PWM2B-16SE
Manufacturer Part Number
AT90PWM2B-16SE
Description
8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT90PWM2B-16SE.pdf
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11.3.2
68
AT90PWM2/3/2B/3B
Alternate Functions of Port B
When this bit is written to one, the pull-ups in the I/O ports are disabled even if the DDxn and
PORTxn Registers are configured to enable the pull-ups ({DDxn, PORTxn} = 0b01). Se
The Port B pins with alternate functions are shown in
Table 11-3.
The alternate pin configuration is as follows:
• PSCOUT01/ADC4/SCK – Bit 7
PSCOUT01: Output 1 of PSC 0.
ADC4, Analog to Digital Converter, input channel 4
SCK: Master Clock output, Slave Clock input pin for SPI channel. When the SPI is enabled as a
slave, this pin is configured as an input regardless of the setting of DDB7. When the SPI is
enabled as a master, the data direction of this pin is controlled by DDB7. When the pin is forced
to be an input, the pull-up can still be controlled by the PORTB7 bit.
• ADC7/ICP1B/PSCOUT11 – Bit 6
ADC7, Analog to Digital Converter, input channel 7
ICP1B, Input Capture Pin: The PB6 pin can act as an Input Capture Pin for Timer/Counter1.
PSCOUT11: Output 1 of PSC 1.
• ADC6/INT2 – Bit 5
ADC6, Analog to Digital Converter, input channel 6
INT2, External Interrupt source 2. This pin can serve as an External Interrupt source to the MCU.
• APM0+ – Bit 4
AMP0+, Analog Differential Amplifier 0 Positive Input Channel.
Port Pin
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
Alternate Functions
PSCOUT01 output
ADC4 (Analog Input Channel 4)
SCK (SPI Bus Serial Clock)
ADC7 (Analog Input Channel 7)
ICP1B (Timer 1 input capture alternate input)
PSCOUT11 output (see note 4)
ADC6 (Analog Input Channel 6)
INT2
AMP0+ (Analog Differential Amplifier 0 Input Channel )
AMP0- (Analog Differential Amplifier 0 Input Channel )
ADC5 (Analog Input Channel5 )
INT1
MOSI (SPI Master Out Slave In)
PSCOUT21 output
MISO (SPI Master In Slave Out)
PSCOUT20 output
Port B Pins Alternate Functions
.
.
.
Table
11-3.
4317J–AVR–08/10
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