Attiny43u – Rainbow Electronics ATtiny43U User Manual
Page 76
76
8048B–AVR–03/09
ATtiny43U
relate the alternate functions of Port B to the
overriding signals shown in
Table 11-9.
Overriding Signals for Alternate Functions in PB7..PB6
Signal
Name
PB7/INT0/PCINT15
PB6/PCINT14
PUOE
0
0
PUOV
0
0
DDOE
0
USIWM1
DDOV
0
USI_SCL_HOLD + PORTB6
PVOE
0
USIWM1
PVOV
0
0
PTOE
0
USIPTOE
DIEOE
(PCINT15 • PCIE1) + INT0
(PCINT14 • PCIE1) + USISIE
DIEOV
(PCINT15 • PCIE1) + INT0
(PCINT14 • PCIE1) + USISIE
DI
INT0/PCINT15
PCINT14/USCK/SCL
AIO
Table 11-10. Overriding Signals for Alternate Functions in PB5..PB4
Signal
Name
PB5/OC1B/PCINT13
PB4/OC1A/PCINT10
PUOE
0
0
PUOV
0
0
DDOE
0
USIWM1
DDOV
0
(SDA + PORTB4) • DDRB4
PVOE
OC1B Enable + (USIWM1 • USIWM0)
OC1A Enable + (USIWM1 • DDRB4)
PVOV
OC1B • (~USIWM1• USIWM0) + USIWM1
• USIWM0 • DO
OC1A • (USIWM1• DDRB4)
PTOE
0
0
DIEOE
PCINT13 • PCIE1
PCINT10 • PCIE1 + USISIE
DIEOV
PCINT13 • PCIE1
PCINT10 • PCIE1 + USISIE
DI
PCINT13
PCINT10/DI/SDA
AIO