76
8018P–AVR–08/10
ATmega169P
low. When the SPI is enabled as a Master, the data direction of this pin is controlled by DDB0.
When the pin is forced to be an input, the pull-up can still be controlled by the PORTB0 bit.
PCINT8, Pin Change Interrupt Source 8: The PB0 pin can serve as an external interrupt source.
Table 13-7 and Table 13-8 on page 77 relate the alternate functions of Port B to the overriding
signals shown in Figure 13-5 on page 71. SPI MSTR INPUT and SPI SLAVE OUTPUT consti-
tute the MISO signal, while MOSI is divided into SPI MSTR OUTPUT and SPI SLAVE INPUT.
Table 13-7.
Overriding Signals for Alternate Functions in PB7..PB4
Signal
Name
PB7/OC2A/
PCINT15
PB6/OC1B/
PCINT14
PB5/OC1A/
PCINT13
PB4/OC0A/
PCINT12
PUOE
0
PUOV
0
DDOE
0
DDOV
0
PVOE
OC2A ENABLE
OC1B ENABLE
OC1A ENABLE
OC0A ENABLE
PVOV
OC2A
OC1B
OC1A
OC0A
PTOE
DIEOE
PCINT15 PCIE1
PCINT14 PCIE1
PCINT13 PCIE1
PCINT12 PCIE1
DIEOV
1
DI
PCINT15 INPUT
PCINT14 INPUT
PCINT13 INPUT
PCINT12 INPUT
AIO
相关PDF资料
2-1546217-0 TERM BLK RCPT 20POS SIDE 5.08MM
1-1546217-9 TERM BLK RCPT 19POS SIDE 5.08MM
1-1546217-8 TERM BLK RCPT 18POS SIDE 5.08MM
1-1546217-7 TERM BLK RCPT 17POS SIDE 5.08MM
1-1546217-6 TERM BLK RCPT 16POS SIDE 5.08MM
1-1546217-5 TERM BLK RCPT 15POS SIDE 5.08MM
1-1546217-4 TERM BLK RCPT 14POS SIDE 5.08MM
1-1546217-3 TERM BLK RCPT 13POS SIDE 5.08MM
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