Datasheet

79
7728G–AVR–06/10
ATtiny87/ATtiny167
Table 9-4. Overriding Signals for Alternate Functions in PA7..PA4
Signal
Name
PA7/PCINT7/
ADC7/AIN1
/XREF/AREF
PA6/PCINT6/
ADC6/AIN0/SS
PA5/PCINT5/ADC5/
T1/USCK/SCL/SCK
PA4/PCINT4/ADC4/
ICP1/DI/SDA/MOSI
PUOE 0 SPE & MSTR
SPE & MSTR SPE & MSTR
PUOV 0 PORTA6 & PUD PORTA5 & PUD PORTA4 & PUD
DDOE 0 SPE & MSTR
(SPE & MSTR) |
(USI_2_WIRE & USIPOS)
(SPE & MSTR
) |
(USI_2_WIRE &
USIPOS)
DDOV 0 0
(USI_SCL_HOLD |
PORTA5
)
& DDRA6
{ (SPE & MSTR
) ?
(0) :
(USI_SHIFTOUT
|
PORTA4
)
& DDRA4) }
PVOE 0 0
(SPE & MSTR) |
(USI_2_WIRE & USIPOS
& DDRA5)
(SPE & MSTR) |
(USI_2_WIRE & USIPOS
& DDRA4)
PVOV 0 0
{ (SPE & MSTR) ?
(SCK_OUTPUT) :
~ (USI_2_WIRE &
USIPOS
& DDRA5) }
{ (SPE & MSTR) ?
(MOSI_OUTPUT) :
~ (USI_2_WIRE &
USIPOS
& DDRA4) }
PTOE 0 0 USI_PTOE & USIPOS 0
DIEOE
ADC7D |
(PCIE0 &
PCMSK07)
ADC6D |
(PCIE0 &
PCMSK06)
ADC5D |
(USISIE & USIPOS) |
(PCIE0 & PCMSK05)
ADC4D |
(USISIE & USIPOS) |
(PCIE0 & PCMSK04)
DIEOV
PCIE0 &
PCMSK07
PCIE0 &
PCMSK06
(USISIE & USIPOS) |
(PCIE0 & PCMSK05)
(USISIE & USIPOS) |
(PCIE0 & PCMSK04)
DI PCINT7 PCINT6 -/- SS
PCINT5 -/- T1
-/- USCK -/- SCL -/- SCK
PCINT4 -/- ICP1
-/- DI -/- SDA -/- MOSI
AIO
ADC7 -/- AIN1 -/-
XREF -/- AREF
ADC6 -/- AIN0 ADC5 ADC4