Atmega169v/l – Rainbow Electronics Atmega169L User Manual
Page 68
68
ATmega169V/L
2514A–AVR–08/02
• TCK, ADC6 – Port F, Bit 6
ADC6, Analog to Digital Converter, Channel 6
.
TDO, JTAG Test Data Out: Serial output data from Instruction Register or Data Register.
When the JTAG interface is enabled, this pin can not be used as an I/O pin.
• TMS, ADC5 – Port F, Bit 5
ADC5, Analog to Digital Converter, Channel 5
.
TMS, JTAG Test mode Select: This pin is used for navigating through the TAP-controller
state machine. When the JTAG interface is enabled, this pin can not be used as an I/O
pin.
• TDO, ADC4 – Port F, Bit 4
ADC4, Analog to Digital Converter, Channel 4
.
TCK, JTAG Test Clock: JTAG operation is synchronous to TCK. When the JTAG inter-
face is enabled, this pin can not be used as an I/O pin.
• ADC3 - ADC0 – Port F, Bit 3:0
Analog to Digital Converter, Channel 3-0.
Table 42. Overriding Signals for Alternate Functions in 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
PTOE
–
–
–
–
DIEOE
JTAGEN
JTAGEN
JTAGEN
JTAGEN
DIEOV
0
0
0
0
DI
TDI
–
TMS
TCK
AIO
ADC7 INPUT
ADC6 INPUT
ADC5 INPUT
ADC4 INPUT