Rev. 1.0, 02/00, page xii of 19
22.3.4
Operation in Synchronous Mode ...................................................................... 442
22.4
SCI Interrupts.................................................................................................................... 450
22.5
Usage Notes ...................................................................................................................... 451
Section 23 I
2
C Bus Interface (IIC)
................................................................................. 459
23.1
Overview........................................................................................................................... 459
23.1.1
Features............................................................................................................. 459
23.1.2
Block Diagram.................................................................................................. 460
23.1.3
Pin Configuration ............................................................................................. 461
23.1.4
Register Configuration...................................................................................... 462
23.2
Register Descriptions ........................................................................................................ 463
23.2.1
I
2
C Bus Data Register (ICDR) .......................................................................... 463
23.2.2
Slave Address Register (SAR).......................................................................... 466
23.2.3
Second Slave Address Register (SARX) .......................................................... 468
23.2.4
I
2
C Bus Mode Register (ICMR)........................................................................ 469
23.2.5
I
2
C Bus Control Register (ICCR)...................................................................... 473
23.2.6
I
2
C Bus Status Register (ICSR)......................................................................... 480
23.2.7
Serial/Timer Control Register (STCR) ............................................................. 484
23.2.8
DDC Switch Register (DDCSWR)................................................................... 485
23.2.9
Module Stop Control Register (MSTPCR)....................................................... 488
23.3
Operation .......................................................................................................................... 489
23.3.1
I
2
C Bus Data Format ......................................................................................... 489
23.3.2
Master Transmit Operation............................................................................... 490
23.3.3
Master Receive Operation ................................................................................ 494
23.3.4
Slave Receive Operation................................................................................... 496
23.3.5
Slave Transmit Operation ................................................................................. 499
23.3.6
IRIC Setting Timing and SCL Control ............................................................. 500
23.3.7
Automatic Switching from Formatless Transfer to I
2
C
Bus Format Transfer ......................................................................................... 502
23.3.8
Noise Canceler.................................................................................................. 503
23.3.9
Sample Flowcharts............................................................................................ 503
23.3.10
Initializing Internal Status................................................................................. 507
23.4
Usage Notes ...................................................................................................................... 509
Section 24 A/D Converter
................................................................................................. 513
24.1
Overview........................................................................................................................... 513
24.1.1
Features............................................................................................................. 513
24.1.2
Block Diagram.................................................................................................. 514
24.1.3
Pin Configuration ............................................................................................. 515
24.1.4
Register Configuration...................................................................................... 516
24.2
Register Descriptions ........................................................................................................ 517
24.2.1
Software-Triggered A/D Result Register (ADR).............................................. 517
24.2.2
Hardware-Triggered A/D Result Register (AHR) ............................................ 517