Information

10.2.4 Signal multiplexing constraints
1. A given peripheral function must be assigned to a maximum of one package pin. Do
not program the same function to more than one pin.
2. To ensure the best signal timing for a given peripheral's interface, choose the pins in
closest proximity to each other.
10.3 Pinout
10.3.1 K20 Signal Multiplexing and Pin Assignments
The following table shows the signals available on each pin and the locations of these
pins on the devices supported by this document. The Port Control Module is responsible
for selecting which ALT functionality is available on each pin.
64
MAP
BGA
64
LQF
P
32
QFN
Pin Name Default ALT0 ALT1 ALT2 ALT3 ALT4 ALT5 ALT6 ALT7 EzPort
A1 1 — PTE0 DISABLED PTE0 UART1_TX RTC_CLKO
UT
B1 2 — PTE1/
LLWU_P0
DISABLED PTE1/
LLWU_P0
UART1_RX
C5 3 1 VDD VDD VDD
C4 4 2 VSS VSS VSS
E1 5 3 USB0_DP USB0_DP USB0_DP
D1 6 4 USB0_DM USB0_DM USB0_DM
E2 7 5 VOUT33 VOUT33 VOUT33
D2 8 6 VREGIN VREGIN VREGIN
G1 9 — ADC0_DP0 ADC0_DP0 ADC0_DP0
F1 10 — ADC0_DM0 ADC0_DM0 ADC0_DM0
G2 11 — ADC0_DP3 ADC0_DP3 ADC0_DP3
F2 12 — ADC0_DM3 ADC0_DM3 ADC0_DM3
F4 13 7 VDDA VDDA VDDA
G4 14 — VREFH VREFH VREFH
G3 15 — VREFL VREFL VREFL
F3 16 8 VSSA VSSA VSSA
H1 17 — VREF_OUT
/
CMP1_IN5/
CMP0_IN5
VREF_OUT
/
CMP1_IN5/
CMP0_IN5
VREF_OUT
/
CMP1_IN5/
CMP0_IN5
Chapter 10 Signal Multiplexing and Signal Descriptions
K20 Sub-Family Reference Manual, Rev. 2, Feb 2012
Freescale Semiconductor, Inc. 193