Information

Section number Title Page
43.7 Application information................................................................................................................................................1096
43.7.1 External pullups...........................................................................................................................................1096
43.7.2 Dead or weak battery...................................................................................................................................1096
43.7.3 Handling unplug events...............................................................................................................................1097
Chapter 44
USB Voltage Regulator
44.1 Introduction...................................................................................................................................................................1099
44.1.1 Overview......................................................................................................................................................1099
44.1.2 Features........................................................................................................................................................1100
44.1.3 Modes of Operation.....................................................................................................................................1101
44.2 USB Voltage Regulator Module Signal Descriptions..................................................................................................1101
Chapter 45
CAN (FlexCAN)
45.1 Introduction...................................................................................................................................................................1103
45.1.1 Overview......................................................................................................................................................1104
45.1.2 FlexCAN module features...........................................................................................................................1105
45.1.3 Modes of operation......................................................................................................................................1106
45.2 FlexCAN signal descriptions........................................................................................................................................1108
45.2.1 CAN Rx .......................................................................................................................................................1108
45.2.2 CAN Tx .......................................................................................................................................................1108
45.3 Memory map/register definition...................................................................................................................................1108
45.3.1 FlexCAN memory mapping.........................................................................................................................1108
45.3.2 Module Configuration Register (CANx_MCR)...........................................................................................1112
45.3.3 Control 1 register (CANx_CTRL1).............................................................................................................1117
45.3.4 Free Running Timer (CANx_TIMER).........................................................................................................1120
45.3.5 Rx Mailboxes Global Mask Register (CANx_RXMGMASK)....................................................................1121
45.3.6 Rx 14 Mask register (CANx_RX14MASK)................................................................................................1122
45.3.7 Rx 15 Mask register (CANx_RX15MASK)................................................................................................1123
45.3.8 Error Counter (CANx_ECR)........................................................................................................................1123
K20 Sub-Family Reference Manual, Rev. 1.1, Dec 2012
Freescale Semiconductor, Inc.
Preliminary
39
General Business Information