14.2
Functional Description ............................................................................................................. 337
14.2.1 I2C Bus Functional Overview .................................................................................................... 338
14.2.2 Available Speed Modes ........................................................................................................... 340
14.2.3 Interrupts ................................................................................................................................ 341
14.2.4 Loopback Operation ................................................................................................................ 341
14.2.5 Command Sequence Flow Charts ............................................................................................ 342
14.3
Initialization and Configuration ................................................................................................. 348
14.4
I2C Register Map ..................................................................................................................... 349
14.5
Register Descriptions (I2C Master) ........................................................................................... 350
14.6
Register Descriptions (I2C Slave) ............................................................................................. 363
15
Analog Comparators ....................................................................................................... 372
15.1
Block Diagram ........................................................................................................................ 373
15.2
Functional Description ............................................................................................................. 373
15.2.1 Internal Reference Programming .............................................................................................. 375
15.3
Initialization and Configuration ................................................................................................. 376
15.4
Register Map .......................................................................................................................... 376
15.5
Register Descriptions .............................................................................................................. 377
16
Pulse Width Modulator (PWM) ........................................................................................ 385
16.1
Block Diagram ........................................................................................................................ 385
16.2
Functional Description ............................................................................................................. 385
16.2.1 PWM Timer ............................................................................................................................. 385
16.2.2 PWM Comparators .................................................................................................................. 386
16.2.3 PWM Signal Generator ............................................................................................................ 387
16.2.4 Dead-Band Generator ............................................................................................................. 388
16.2.5 Interrupt Selector ..................................................................................................................... 388
16.2.6 Synchronization Methods ......................................................................................................... 388
16.2.7 Fault Conditions ...................................................................................................................... 389
16.2.8 Output Control Block ............................................................................................................... 389
16.3
Initialization and Configuration ................................................................................................. 389
16.4
Register Map .......................................................................................................................... 390
16.5
Register Descriptions .............................................................................................................. 392
17
Quadrature Encoder Interface (QEI) ............................................................................... 421
17.1
Block Diagram ........................................................................................................................ 421
17.2
Functional Description ............................................................................................................. 422
17.3
Initialization and Configuration ................................................................................................. 424
17.4
Register Map .......................................................................................................................... 425
17.5
Register Descriptions .............................................................................................................. 425
18
Pin Diagram ...................................................................................................................... 438
19
Signal Tables .................................................................................................................... 439
20
Operating Characteristics ............................................................................................... 454
21
Electrical Characteristics ................................................................................................ 455
21.1
DC Characteristics .................................................................................................................. 455
21.1.1 Maximum Ratings ................................................................................................................... 455
21.1.2 Recommended DC Operating Conditions .................................................................................. 455
21.1.3 On-Chip Low Drop-Out (LDO) Regulator Characteristics ............................................................ 456
21.1.4 Power Specifications ............................................................................................................... 456
November 30, 2007
6
Preliminary
Table of Contents