TransDimension Inc.
Interfacing OTG243 to Motorola MCF5272 ColdFire Processor
1
2
3
4
5
6
7
8
9
NC
D0
21 VDD
22 VDD
23 VSS
24 TEST
25 NC
26 /CS
27 /WR
28 /RD
29 D16
30 D17
31 D18
32 D19
33 D20
34 D21
35 D22
36 D23
37 VDD
38 VSS
39 D24
40 D25
41 D26
42 D27
43 VSS
44 VDD
45 DP2
46 DM2
47 DP3
48 DM3
49 NC
50 NC
51 NC
52 RPU
53 DP1
54 DM1
55 VSS
56 D28
57 D29
58 D30
59 D31
60 VSS
61 VDD
62 VDD
81 VBUS
82 VFB
D1
63 WAKEUP 83 /OC
D2
64 INT
65 /RESET
66 VBP
67 A2
84 /PO
VDD
VDD
D3
85 ID
86 VSS
87 VDD
D4
D5
68 A3
88 VDD
69 A4
89 /EXVBO
90 DRQ1
91 DRQ0
92 DACK1
93 DACK0
94 EOT1
95 EOT0
96 VSS
10 D6
11 D7
12 VSS
13 D8
14 D9
15 D10
16 D11
17 D12
18 D13
19 D14
20 D15
70 A5
71 A6
72 A7
73 A8
74 NC
75 NC
76 AVDD
77 AVSS
78 CEX1
79 VDD
80 CEX2
97 AVSS
98 OSC1
99 OSC2
100 AVDD
Figure 2: OTG243 pin assignment (LQFP)
1.2 References
General instructions on OTG243 interfacing are given in chapters 6 and 7 of the OTG243 data
sheet (TDI document number: MU2001). This reference design describes a specific interfacing
design of OTG243 with Motorola MCF5272 ColdFire .
It is assumed that the user has knowledge on general principles of microprocessor interfacing, as
well as some understanding on the Motorola MCF5272 and the OTG243. Reading Chapter 7 of
USB Specification 2.0 is recommended.
1.3 Notation
For clarity, all OTG243 signal names in the following are in italic bold: e.g., A4 and VBUS,
and active low signals are written with leading “/”: e.g., /WR.
MCF5272 names are in plain bold: e.g., A4 and nCS0, and active low signals are written with
leading “n”: e.g, CS0 is written as nCS0.
1.4 Software
TransDimension, together with SoftConnex Inc, its wholly owned subsidiary, offer total solutions
including controller chips, reference designs, development kits, firmware for microprocessor
interfacing, HCD (host controller driver), HNP (Host Negotiation Protocol), SRP (Session
Request Protocol) as well as USB Host and Function stacks running under most real time
operating systems.
2
OXFORD [ OXFORD SEMICONDUCTOR ]
