13.2.6
13.2.7
13.2.8
Operation ........................................................................................................................ 464
13.3.1
Overview......................................................................................................... 464
13.3.2
Operation in Asynchronous Mode.................................................................. 466
13.3.3
Multiprocessor Communication ..................................................................... 475
13.3.4
Synchronous Operation .................................................................................. 482
SCI Interrupts.................................................................................................................. 491
Usage Notes.................................................................................................................... 492
Serial Control Register (SCR)........................................................................ 447
Serial Status Register (SSR)........................................................................... 451
Bit Rate Register (BRR)................................................................................. 455
13.3
13.4
13.5
Section 14
14.1
Smart Card Interface
................................................................................ 497
Overview......................................................................................................................... 497
14.1.1
Features........................................................................................................... 497
14.1.2
Block Diagram................................................................................................ 498
14.1.3
Input/Output Pins............................................................................................ 499
14.1.4
Register Configuration.................................................................................... 499
Register Descriptions...................................................................................................... 500
14.2.1
Smart Card Mode Register (SCMR)............................................................... 500
14.2.2
Serial Status Register (SSR)........................................................................... 501
14.2.3
Serial Mode Register (SMR).......................................................................... 503
14.2.4
Serial Control Register (SCR)........................................................................ 504
Operation ........................................................................................................................ 505
14.3.1
Overview......................................................................................................... 505
14.3.2
Pin Connections.............................................................................................. 505
14.3.3
Data Format.................................................................................................... 506
14.3.4
Register Settings............................................................................................. 508
14.3.5
Clock............................................................................................................... 510
14.3.6
Transmitting and Receiving Data ................................................................... 512
Usage Notes.................................................................................................................... 519
14.2
14.3
14.4
Section 15
15.1
A/D Converter
............................................................................................ 523
Overview......................................................................................................................... 523
15.1.1
Features........................................................................................................... 523
15.1.2
Block Diagram................................................................................................ 524
15.1.3
Input Pins........................................................................................................ 525
15.1.4
Register Configuration.................................................................................... 526
Register Descriptions...................................................................................................... 527
15.2.1
A/D Data Registers A to D (ADDRA to ADDRD)........................................ 527
15.2.2
A/D Control/Status Register (ADCSR).......................................................... 528
15.2.3
A/D Control Register (ADCR)....................................................................... 531
15.2