PXN20 Datasheet, PDF (8/60 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

Pin assignments
3.2 Pin muxing and reset states
Table 3 shows the signals properties for each pin on PXN20. For all port pins that have an associated SIU_PCRn register to
control pin properties, the supported functions column lists the functions associated with the programming of the
SIU_PCRn[PA] bit in the order: general-purpose input/output (GPIO), function 1, function 2, and function 3 (see Figure 5).
When an alternate function is not implemented for a value of SIU_PCRn[PA], a dash is shown in the Description column and
the respective value in the PA bit field is reserved.
Supported
Functions²
GPIO
(PCR)
Num³
PA⁴
Description
PA[0]
AN[0]
0 00 Port A GPI
01 ADC Analog Input
10 —
11 —
GPIO
Function 1
Functions 2 and 3
not implemented
Figure 5. Supported functions example
Table 3. PXN20 signal properties
Pin
Name¹
Supported
Functions²
GPIO
(PCR) PA⁴
Num³
Description
I/O
Type
Volt-
age
Status
Pad
Type⁵ _{During After}
Reset⁶ Reset⁷
Package Pin
Locations
208
BGA
Port A (16)
PA0 PA[0]
AN[0]
PA1 PA[1]
AN[1]
PA2 PA[2]
AN[2]
PA3 PA[3]
AN[3]
PA4 PA[4]
AN[4]
PA5 PA[5]
AN[5]
0
00 Port A GPI
01 ADC Analog Input
10 —
11 —
1
00 Port A GPI
01 ADC Analog Input
10 —
11 —
2
00 Port A GPI
01 ADC Analog Input
10 —
11 —
3
00 Port A GPI
01 ADC Analog Input
10 —
11 —
4
00 Port A GPI
01 ADC Analog Input
10 —
11 —
5
00 Port A GPI
01 ADC Analog Input
10 —
11 —
I V_DDA IHA —
—
D15
I
—
—
I V_DDA IHA —
—
E15
I
—
—
I V_DDA IHA —
—
F16
I
—
—
I V_DDA IHA —
—
F15
I
—
—
I V_DDA IHA —
—
G16
I
—
—
I V_DDA IHA —
—
G15
I
—
—
PXN20 Microcontroller Data Sheet, Rev. 1
8
Freescale Semiconductor