Rainbow Electronics ATmega128RFA1 - Manual (Page 201)

201
8266A-MCU Wireless-12/09
ATmega128RFA1
Table 14-13. Overriding Signals for Alternate Functions PF7:PF4
Signal
Name PF7/ADC7/TDI PF6/ADC6/TDO PF5/ADC5/TMS PF4/ADC4/TCK
PUOE JTAGEN JTAGEN JTAGEN JTAGEN
PUOV 1 0 1 1
DDOE JTAGEN JTAGEN JTAGEN JTAGEN
DDOV 0 SHIFT_IR+SHIFT_DR 0 0
PVOE 0 JTAGEN 0 0
PVOV 0 TDO 0 0
DIEOE JTAGEN JTAGEN JTAGEN JTAGEN
DIEOV 0 0 0 0
DI – – – –
AIO TDI/ADC7 INPUT ADC6 INPUT TMS/ADC5
INPUT TCK/ADC4 INPUT
Table 14-14. Overriding Signals for Alternate Functions PF3:PF0
Signal
Name PF3/ADC3/DIG4 PF2/ADC2/DIG2 PF1/ADC1 PF0/ADC0
PUOE 0 0 0 0
PUOV 0 0 0 0
DDOE PA_EXT_EN ANT_EXT_SW_EN 0 0
DDOV PA_EXT_EN ANT_EXT_SW_EN 0 0
PVOE PA_EXT_EN ANT_EXT_SW_EN 0 0
PVOV DIG4 DIG2 0 0
DIEOE 0 0 0 0
DIEOV 0 0 0 0
DI – – – –
AIO ADC3 INPUT ADC2 INPUT ADC1 INPUT ADC0 INPUT
14.3.5 Alternate Functions of Port G
The Port G alternate pin configuration is as follows:
Table 14-15. Port G Pins Alternate Functions
Port Pin Alternate Function
PG5 OC0B (Output Compare and PWM Output B for Timer/Counter0)
PG4 TOSC1 (RTC Oscillator Timer/Counter2)
PG3 TOSC2 (RTC Oscillator Timer/Counter2)
PG2 AMR (Automated Meter Reading - Counter Input for Timer/Counter2)
PG1 DIG1 (Radio Transceiver Antenna Diversity Control Output)
PG0 DIG3 (Radio Transceiver RX/TX Indicator Output)
• OC0B – Port G, Bit 5
OC0B, Output Compare match B output: The PG5 pin can serve as an external output
for the TImer/Counter0 Output Compare. The pin has to be configured as an output
(DDG5 set) to serve this function. The OC0B pin is also the output pin for the PWM
mode timer function.
• TOSC1 – Port G, Bit 4