Information
Section number Title Page
42.9 Hardware Interface........................................................................................................................................................1069
42.9.1 ......................................................................................................................................................................1069
42.10 System Level Issues and Configuration........................................................................................................................1069
42.10.1 ......................................................................................................................................................................1069
42.10.2 Power...........................................................................................................................................................1069
42.10.3 USB Suspend State......................................................................................................................................1069
Chapter 43
USB Device Charger Detection Module (USBDCD)
43.1 Preface...........................................................................................................................................................................1071
43.1.1 References....................................................................................................................................................1071
43.1.2 Acronyms and abbreviations........................................................................................................................1071
43.1.3 Glossary.......................................................................................................................................................1072
43.2 Introduction...................................................................................................................................................................1072
43.2.1 Block diagram..............................................................................................................................................1072
43.2.2 Features........................................................................................................................................................1073
43.2.3 Modes of operation......................................................................................................................................1073
43.3 Module signal descriptions...........................................................................................................................................1074
43.4 Memory map/Register definition..................................................................................................................................1075
43.4.1 Control register (USBDCD_CONTROL)....................................................................................................1076
43.4.2 Clock register (USBDCD_CLOCK)............................................................................................................1077
43.4.3 Status register (USBDCD_STATUS)..........................................................................................................1079
43.4.4 TIMER0 register (USBDCD_TIMER0)......................................................................................................1080
43.4.5 TIMER1 register (USBDCD_TIMER1)......................................................................................................1081
43.4.6 TIMER2 register (USBDCD_TIMER2)......................................................................................................1082
43.5 Functional description...................................................................................................................................................1083
43.5.1 The charger detection sequence...................................................................................................................1084
43.5.2 Interrupts and events....................................................................................................................................1093
43.5.3 Resets...........................................................................................................................................................1095
43.6 Initialization information..............................................................................................................................................1096
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
38
Preliminary
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