Datasheet

Rev. 6.00 Mar. 18, 2010 Page xxxi of lx
REJ09B0054-0600
13.6.2 Contention between Timer Counter (TCNT) Write and Increment.....................478
13.6.3 Changing Value of PSS or CKS2 to CKS0..........................................................479
13.6.4 Switching between Watchdog Timer Mode and Interval Timer Mode................479
13.6.5 Internal Reset in Watchdog Timer Mode.............................................................479
13.6.6 OVF Flag Clearing in Interval Timer Mode ........................................................479
13.6.7 Notes on Initializing TCNT by Using the TME Bit.............................................479
Section 14 IEBus™ Controller (IEB) [H8S/2258 Group] ................................ 481
14.1 Features.............................................................................................................................481
14.1.1 IEBus Communications Protocol.........................................................................483
14.1.2 Communications Protocol....................................................................................485
14.1.3 Transfer Data (Data Field Contents)....................................................................493
14.1.4 Bit Format............................................................................................................496
14.2 Input/Output Pins..............................................................................................................497
14.3 Register Descriptions ........................................................................................................497
14.3.1 IEBus Control Register (IECTR).........................................................................498
14.3.2 IEBus Command Register (IECMR) ...................................................................500
14.3.3 IEBus Master Control Register (IEMCR)............................................................502
14.3.4 IEBus Master Unit Address Register 1 (IEAR1) .................................................504
14.3.5 IEBus Master Unit Address Register 2 (IEAR2) .................................................505
14.3.6 IEBus Slave Address Setting Register 1 (IESA1)................................................505
14.3.7 IEBus Slave Address Setting Register 2 (IESA2)................................................506
14.3.8 IEBus Transmit Message Length Register (IETBFL)..........................................506
14.3.9 IEBus Transmit Buffer Register (IETBR) ...........................................................507
14.3.10 IEBus Reception Master Address Register 1 (IEMA1) .......................................508
14.3.11 IEBus Reception Master Address Register 2 (IEMA2) .......................................508
14.3.12 IEBus Receive Control Field Register (IERCTL)................................................509
14.3.13 IEBus Receive Message Length Register (IERBFL)...........................................509
14.3.14 IEBus Receive Buffer Register (IERBR).............................................................510
14.3.15 IEBus Lock Address Register 1 (IELA1) ............................................................511
14.3.16 IEBus Lock Address Register 2 (IELA2) ............................................................511
14.3.17 IEBus General Flag Register (IEFLG).................................................................512
14.3.18 IEBus Transmit/Runaway Status Register (IETSR) ............................................515
14.3.19 IEBus Transmit/Runaway Interrupt Enable Register (IEIET) .............................518
14.3.20 IEBus Transmit Error Flag Register (IETEF)......................................................519
14.3.21 IEBus Receive Status Register (IERSR)..............................................................522
14.3.22 IEBus Receive Interrupt Enable Register (IEIER)...............................................524
14.3.23 IEBus Receive Error Flag Register (IEREF) .......................................................524
14.4 Operation Descriptions......................................................................................................527
14.4.1 Master Transmit Operation..................................................................................527