AN2727 Freescale Semiconductor / Motorola, AN2727 Datasheet - Page 6

• Manufacturer Part Number: AN2727
• Description: Designing Hardware for the HCS12 D-Family
• Manufacturer: Freescale Semiconductor / Motorola

Pin States Following Reset in Normal Single Chip Mode
6
= Input, high impedance
= Input, internal pull-up enabled
= Analog input, high impedance, tie to ground if not used
= Control, always connect
= Connect if using internal oscillator
= 0V
= 2.5V supply
= 5V supply
= ATD reference
Figure 2.
S12 D-family 80QFP Pin State Out of Reset in Normal Single Chip Mode
MODC/BKGD
Always connect to appropriate
voltages and/or decoupling
VDD1
VSS1
PB0
PB1
PB2
PB3
PB4
PP3
PP2
PP1
PP0
PT0
PT1
PT2
PT3
PT4
PT5
PT6
PT7
Designing Hardware for the HCS12 D-Family, Rev. 0
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
MC9S12DP256
80 QFP
= Pin has key wake-up capability
= Internal pull-downs active only during reset
= Pin is sampled at reset for oscillator selection
= Pin always has internal pull-up
= Pin is ECLK output in special modes
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
VRH
VDDA
PAD07
PAD06
PAD05
PAD04
PAD03
PAD02
PAD01
PAD00
VSS2
VDD2
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Freescale Semiconductor