Product Specs

Table Of Contents
Contents
Page
5
32 SPIS Serial peripheral interface slave with EasyDMA
..................................
292
32.1 Shared resources 292
32.2 EasyDMA 292
32.3 SPI slave operation 293
32.4 Pin configuration 294
32.5 Registers 295
32.6 Electrical specification 303
33 TWIM I
2
C compatible two-wire interface master with EasyDMA.................305
33.1 Shared resources 306
33.2 EasyDMA 306
33.3 Master write sequence 307
33.4 Master read sequence 308
33.5 Master repeated start sequence 309
33.6 Low power 310
33.7 Master mode pin configuration 310
33.8 Registers 310
33.9 Electrical specification 317
34 TWIS I
2
C compatible two-wire interface slave with EasyDMA
....................
319
34.1 Shared resources 321
34.2 EasyDMA 321
34.3 TWI slave responding to a read command
...............................................................................
321
34.4 TWI slave responding to a write command
..............................................................................
322
34.5 Master repeated start sequence 323
34.6 Terminating an ongoing TWI transaction
..................................................................................
324
34.7 Low power 324
34.8 Slave mode pin configuration 324
34.9 Registers 325
34.10 Electrical specification 331
35 UARTE Universal asynchronous receiver/transmitter with EasyDMA
.....
333
35.1 Shared resources 333
35.2 EasyDMA 333
35.3 Transmission 334
35.4 Reception 334
35.5 Error conditions 336
35.6 Using the UARTE without flow control
......................................................................................
336
35.7 Parity configuration 336
35.8 Low power 336
35.9 Pin configuration 337
35.10 Registers 337
35.11 Electrical specification 345
36 QDEC Quadrature decoder 347
36.1 Sampling and decoding 347
36.2 LED output 348
36.3 Debounce filters 348
36.4 Accumulators 349
36.5 Output/input pins 349
36.6 Pin configuration 349
36.7 Registers 350
36.8 Electrical specification 356
37 SAADC Successive approximation analog-to-digital converter
.................
357
37.1 Shared resources 357
37.2 Overview 357
37.3 Digital output 358
37.4 Analog inputs and channels 359
37.5 Operation modes 359
37.6 EasyDMA 361
37.7 Resistor ladder 362