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PXD20RM Datasheet, PDF (90/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller
Table 3-1. Voltage supply pin descriptions (continued)
Supply pin
Function
176 LQFP
Pin number
208 LQFP
416 TEPBGA
VSS
VDDE_B
VDDA2
VSSA
VDDR
VSSR
VDDE_A2
VSSE_A
VDDM
VSSM
VDDPLL
VSUP_TEST3
VDD_DR
1.2 V ground
7, 18, 36, 49, 66, 7, 18, 38, 47, 57, AB3,AD10,AD16,A
68, 111, 123, 133, 64, 78, 80, 137, D4,AE13,AE19,AE
139, 154, 167, 176 147, 157, 163, 185, 2,AE7,B11,B14,B1
199, 208
9,B2,B25,B5,B8,C1
2,C15,C17,C21,C3
,C6,C9,E2,E24,F3,
H2,H25,J3,K11,K1
3,K15,K17,K24,L10
,L12,L14,L16,L2,M
11,M12,M13,M14,
M15,M17,M3,N10,
N12,N13,N14,N15,
N16,P11,P12,P13,
P14,P15,P17,P2,P
25,R10,R12,R13,R
14,R15,R16,R3,T1
1,T13,T15,T17,U10
,U12,U14,U16,V2,
Y1
VDD12 ground and VDDPLL ground
24
24
—
(VSSPLL)
3.3 V I/O supply. This supply is shared with
internal flash, 16 MHz IRC oscillator and
4–16MHz crystal oscillator.
6, 19, 37, 48, 65,
89, 112, 122, 132,
140, 166
6, 19, 37, 48, 56,
63, 77, 105, 138,
146, 156, 164, 184,
198
AD13,AD19,AD2,A
D7,AE10,AE16,AE
4,B17,B21,B24,C1
9,E25,H24,L25,N2
4,W3
3.3 V/5 V reference voltage and analog
79
supply for A/D converter. This supply is
shared with the SXOSC.
95
AC22
Reference ground and analog ground for
80
A/D converter
96
AD22
Voltage regulator VREG supply
20
20
AA4
Voltage regulator ground
21
21
—
3.3 V/5 V I/O supply. This supply is shared
77
with the SXOSC.
93
AD23
3.3 V/5 V I/O supply ground
78
94
AC23
Stepper motor 3.3 V/5 V pad supply. SSD
shares this supply.
94, 104
110, 120, 130
U25,W24,AA25
Stepper motor ground
95, 105
111, 121, 131
U24,W24,AA24
1.2 V PLL supply
25
25
AB4
9 V - 12 V flash test analog write signal
22
22
AC1
1.8V, 2.5V, and 3.3V DDR SDRAM supply
—
—
C2,C5,C8,C11,C14
,E3,H3,L3,N3,T3
PXD20 Microcontroller Reference Manual, Rev. 1
3-6
Freescale Semiconductor
Preliminary—Subject to Change Without Notice