13.2.6
Serial Control Register (SCR) ........................................................................ 447
13.2.7
Serial Status Register (SSR) ........................................................................... 451
13.2.8
Bit Rate Register (BRR) ................................................................................. 455
13.3
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
13.4
SCI Interrupts.................................................................................................................. 491
13.5
Usage Notes .................................................................................................................... 492
Section 14
Smart Card Interface
................................................................................ 497
14.1
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
14.2
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
14.3
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
14.4
Usage Notes .................................................................................................................... 519
Section 15
A/D Converter
............................................................................................ 523
15.1
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
15.2
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
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