21.1.1 Maximum Ratings ................................................................................................................... 477
21.1.2 Recommended DC Operating Conditions .................................................................................. 477
21.1.3 On-Chip Low Drop-Out (LDO) Regulator Characteristics ............................................................ 478
21.1.4 Power Specifications ............................................................................................................... 478
21.1.5 Flash Memory Characteristics .................................................................................................. 480
21.2
AC Characteristics ................................................................................................................... 480
21.2.1 Load Conditions ...................................................................................................................... 480
21.2.2 Clocks .................................................................................................................................... 480
21.2.3 Analog-to-Digital Converter ...................................................................................................... 481
21.2.4 Analog Comparator ................................................................................................................. 482
21.2.5 I2C ......................................................................................................................................... 482
21.2.6 Ethernet Controller .................................................................................................................. 483
21.2.7 Hibernation Module ................................................................................................................. 486
21.2.8 Synchronous Serial Interface (SSI) ........................................................................................... 486
21.2.9 JTAG and Boundary Scan ........................................................................................................ 488
21.2.10 General-Purpose I/O ............................................................................................................... 489
21.2.11 Reset ..................................................................................................................................... 490
22
Package Information ........................................................................................................ 492
A
Serial Flash Loader .......................................................................................................... 494
A.1
Serial Flash Loader ................................................................................................................. 494
A.2
Interfaces ............................................................................................................................... 494
A.2.1
UART ..................................................................................................................................... 494
A.2.2
SSI ......................................................................................................................................... 494
A.3
Packet Handling ...................................................................................................................... 495
A.3.1
Packet Format ........................................................................................................................ 495
A.3.2
Sending Packets ..................................................................................................................... 495
A.3.3
Receiving Packets ................................................................................................................... 495
A.4
Commands ............................................................................................................................. 496
A.4.1
COMMAND_PING (0X20) ........................................................................................................ 496
A.4.2
COMMAND_GET_STATUS (0x23) ........................................................................................... 496
A.4.3
COMMAND_DOWNLOAD (0x21) ............................................................................................. 496
A.4.4
COMMAND_SEND_DATA (0x24) ............................................................................................. 497
A.4.5
COMMAND_RUN (0x22) ......................................................................................................... 497
A.4.6
COMMAND_RESET (0x25) ..................................................................................................... 497
B
Register Quick Reference ............................................................................................... 499
C
Ordering and Contact Information ................................................................................. 515
C.1
Ordering Information ................................................................................................................ 515
C.2
Kits ......................................................................................................................................... 515
C.3
Company Information .............................................................................................................. 515
C.4
Support Information ................................................................................................................. 516
7
October 08, 2007
Preliminary
LM3S6938 Microcontroller