Datasheet

14
32142D–06/2013
ATUC64/128/256L3/4U
3.2.5 Oscillator Pinout
The oscillators are not mapped to the normal GPIO functions and their muxings are controlled
by registers in the System Control Interface (SCIF). Please refer to the SCIF chapter for more
information about this.
3.2.6 Other Functions
The functions listed in Table 3-6 are not mapped to the normal GPIO functions. The aWire DATA
pin will only be active after the aWire is enabled. The aWire DATAOUT pin will only be active
after the aWire is enabled and the 2_PIN_MODE command has been sent. The WAKE_N pin is
always enabled. Please refer to Section 6.1.4.2 on page 44 for constraints on the WAKE_N pin.
EVTO_N PA04 PA04
MCKO PA06 PB01
MSEO[1] PA07 PB11
MSEO[0] PA11 PB12
Table 3-4. Nexus OCD AUX Port Connections
Pin AXS=1 AXS=0
Table 3-5. Oscillator Pinout
48-pin 64-pin Pin Name Oscillator Pin
33PA08XIN0
46 62 PA10 XIN32
26 34 PA13 XIN32_2
22PA09XOUT0
47 63 PA12 XOUT32
25 33 PA20 XOUT32_2
Table 3-6. Other Functions
48-pin 64-pin Pin Name Function
27 35 PA11 WAKE_N
22 30 RESET_N aWire DATA
11 15 PA00 aWire DATAOUT