vii
11.2.1 Receive Shift Register (RSR)................................................................................ 327
11.2.2 Receive Data Register (RDR) ............................................................................... 327
11.2.3 Transmit Shift Register (TSR) .............................................................................. 328
11.2.4 Transmit Data Register (TDR).............................................................................. 328
11.2.5 Serial Mode Register (SMR)................................................................................. 329
11.2.6 Serial Control Register (SCR)............................................................................... 333
11.2.7 Serial Status Register (SSR).................................................................................. 337
11.2.8 Bit Rate Register (BRR)........................................................................................ 341
11.3
Operation ............................................................................................................................ 350
11.3.1 Overview ............................................................................................................... 350
11.3.2 Operation in Asynchronous Mode ........................................................................ 352
11.3.3 Multiprocessor Communication............................................................................ 361
11.3.4 Synchronous Operation ......................................................................................... 368
11.4
SCI Interrupts ..................................................................................................................... 377
11.5
Usage Notes........................................................................................................................ 378
Section 12 Smart Card Interface
...................................................................................... 383
12.1 Overview ............................................................................................................................ 383
12.1.1 Features ................................................................................................................. 383
12.1.2 Block
Diagram ...................................................................................................... 384
12.1.3 Pin
Configuration .................................................................................................. 385
12.1.4 Register
Configuration .......................................................................................... 385
12.2 Register
Descriptions.......................................................................................................... 386
12.2.1 Smart Card Mode Register (SCMR) ..................................................................... 386
12.2.2 Serial Status Register (SSR).................................................................................. 388
12.3 Operation ............................................................................................................................ 390
12.3.1 Overview ............................................................................................................... 390
12.3.2 Pin
Connections .................................................................................................... 390
12.3.3 Data
Format........................................................................................................... 392
12.3.4 Register
Settings.................................................................................................... 394
12.3.5 Clock ..................................................................................................................... 396
12.3.6 Data Transfer Operations ...................................................................................... 398
12.4 Usage
Note ......................................................................................................................... 404
Section 13 A/D Converter
.................................................................................................. 407
13.1
Overview ............................................................................................................................ 407
13.1.1 Features ................................................................................................................. 407
13.1.2 Block Diagram ...................................................................................................... 408
13.1.3 Pin Configuration .................................................................................................. 409
13.1.4 Register Configuration .......................................................................................... 410
13.2
Register Descriptions.......................................................................................................... 411
13.2.1 A/D Data Registers A to D (ADDRA to ADDRD) .............................................. 411
13.2.2 A/D Control/Status Register (ADCSR) ................................................................ 412