
Rev. 4.00, 03/04, page xiv of xxviii
14.3.6
Serial Control Register 3 (SCR3) ........................................................................184
14.3.7
Serial Status Register (SSR)................................................................................186
14.3.8
Bit Rate Register (BRR)......................................................................................188
14.4
Operation in Asynchronous Mode....................................................................................195
14.4.1
Clock....................................................................................................................195
14.4.2
SCI3 Initialization................................................................................................196
14.4.3
Data Transmission...............................................................................................197
14.4.4
Serial Data Reception..........................................................................................199
14.5
Operation in Clocked Synchronous Mode........................................................................203
14.5.1
Clock....................................................................................................................203
14.5.2
SCI3 Initialization................................................................................................203
14.5.3
Serial Data Transmission.....................................................................................204
14.5.4
Serial Data Reception (Clocked Synchronous Mode) .........................................206
14.5.5
Simultaneous Serial Data Transmission and Reception.......................................208
14.6
Multiprocessor Communication Function.........................................................................210
14.6.1
Multiprocessor Serial Data Transmission............................................................211
14.6.2
Multiprocessor Serial Data Reception.................................................................212
14.7
Interrupts...........................................................................................................................216
14.8
Usage Notes......................................................................................................................217
14.8.1
Break Detection and Processing..........................................................................217
14.8.2
Mark State and Break Sending ............................................................................217
14.8.3
Receive Error Flags and Transmit Operations
(Clocked Synchronous Mode Only) ....................................................................217
14.8.4
Receive Data Sampling Timing
and Reception Margin in Asynchronous Mode ...................................................218
Section 15 I
15.1
Features.............................................................................................................................219
15.2
Input/Output Pins..............................................................................................................221
15.3
Register Descriptions........................................................................................................221
15.3.1
I
15.3.2
I
15.3.3
I
15.3.4
I
15.3.5
I
15.3.6
Slave Address Register (SAR).............................................................................231
15.3.7
I
15.3.8
I
15.3.9
I
15.4
Operation ..........................................................................................................................233
15.4.1
I
15.4.2
Master Transmit Operation..................................................................................234
15.4.3
Master Receive Operation ...................................................................................236
2
C Bus Interface 2 (IIC2)................................................................219
2
C Bus Control Register 1 (ICCR1)....................................................................222
2
C Bus Control Register 2 (ICCR2)....................................................................224
2
C Bus Mode Register (ICMR)...........................................................................225
2
C Bus Interrupt Enable Register (ICIER)..........................................................227
2
C Bus Status Register (ICSR)............................................................................229
2
C Bus Transmit Data Register (ICDRT) ...........................................................232
2
C Bus Receive Data Register (ICDRR).............................................................232
2
C Bus Shift Register (ICDRS)...........................................................................232
2
C Bus Format.....................................................................................................233