
Preliminary User’s Manual U16541EJ1V0UM
12
14.4
Operation ................................................................................................................................378
14.4.1
Operation in normal mode .......................................................................................................378
14.4.2
Operation in real-time output mode .........................................................................................378
14.4.3
Cautions ..................................................................................................................................379
CHAPTER 15 ASYNCHRONOUS SERIAL INTERFACE A (UARTA) ...............................................380
15.1
Mode Switching of UARTA and Other Serial Interfaces ....................................................380
15.1.1
CSIB4 and UARTA0 mode switching ......................................................................................380
15.1.2
UARTA2 and I
2C00 mode switching ........................................................................................381
15.1.3
UARTA1 and I
2C02 mode switching ........................................................................................382
15.2
Features ..................................................................................................................................383
15.3
Configuration .........................................................................................................................384
15.4
Control Registers...................................................................................................................386
15.5
Interrupt Request Signals .....................................................................................................393
15.6
Operation ................................................................................................................................394
15.6.1
Data format ..............................................................................................................................394
15.6.2
SBF transmission/reception format .........................................................................................396
15.6.3
SBF transmission ....................................................................................................................398
15.6.4
SBF reception..........................................................................................................................399
15.6.5
UART transmission..................................................................................................................400
15.6.6
Continuous transmission procedure ........................................................................................401
15.6.7
UART reception .......................................................................................................................403
15.6.8
Reception error........................................................................................................................404
15.6.9
Parity types and operations .....................................................................................................405
15.6.10 Receive data noise filter ..........................................................................................................406
15.7
Dedicated Baud Rate Generator...........................................................................................407
CHAPTER 16 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIB) .....................................................415
16.1
Mode Switching of CSIB and Other Serial Interfaces ........................................................415
16.1.1
CSIB4 and UARTA0 mode switching ......................................................................................415
16.1.2
CSIB0 and I
2C01 mode switching............................................................................................417
16.2
Features ..................................................................................................................................418
16.3
Configuration .........................................................................................................................418
16.4
Control Registers...................................................................................................................421
16.5
Operation ................................................................................................................................427
16.5.1
Single transfer (master mode, transmission/reception mode) .................................................427
16.5.2
Single transfer mode (master mode, reception mode) ............................................................428
16.5.3
Continuous mode (master mode, transmission/reception mode) ............................................429
16.5.4
Continuous mode (master mode, reception mode) .................................................................430
16.5.5
Continuous reception mode (error)..........................................................................................431
16.5.6
Continuous mode (slave mode, transmission/reception mode)...............................................432
16.5.7
Continuous mode (slave mode, reception mode) ....................................................................433
16.5.8
Clock timing .............................................................................................................................434
16.6
Output Pins ............................................................................................................................436
16.7
Operation Flow.......................................................................................................................437
16.8
Baud Rate Generator.............................................................................................................443