PXD10RM Datasheet, PDF (81/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

• The port pin summary table
• The pad type descriptions
• The description of the pad configuration registers in the SIUL chapter of the device reference
manual
• The device data sheet
3.6 System pins
The system pins are listed in Table 3-2.
Table 3-2. System pin descriptions
System pin
Function
I/O
Pad
direction type
RESET
config
Pin No.
144 LQFP 176 LQFP
208 MAPB
GA
RESET Bidirectional reset with
I/O
M Input, weak
24
24
J1
Schmitt-Trigger
pull up
characteristics and noise
filter.
EXTAL
Analog output of the
oscillator amplifier circuit.
Input for the clock
generator in bypass mode.
X
—
29
29
K1
XTAL Analog input of the
I
X
—
oscillator amplifier circuit.
Needs to be grounded if
oscillator bypass mode is
used.
27
27
M1
VRC_CTRL VREG ballast control gain
25
25
P1
VREG_ Pin used for factory testing
I
X
—
BYPASS¹
1 _{VREG_BYPASS should be pulled down externally.}
32
32
M1
3.7 Debug pins
The debug pins are listed in Table 3-3.
Table 3-3. Debug pin descriptions
Debug pin
Function
EVTI
EVTO
MCKO
Nexus event input
Nexus event output
Nexus message clock
output
Pad
type
M
M
F
I/O
direction
I/O
I/O
I/O
RESET config
Pin number
144 LQFP
176 LQFP
1
208 MAP
BGA
Input, Pull Up
—
37
T3
Input, Pull Up
—
35
R3
Input, Pull Up
—
33
T1
PXD10 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor
3-7
Preliminary—Subject to Change Without Notice