Rev. 3.0, 04/02, page xi of xxxviii
Section 12 Timer Unit (TMU)
......................................................................................... 287
12.1 Overview........................................................................................................................... 287
12.1.1 Features................................................................................................................ 287
12.1.2 Block Diagram ..................................................................................................... 288
12.1.3 Pin Configuration................................................................................................. 288
12.1.4 Register Configuration......................................................................................... 289
12.2 Register Descriptions......................................................................................................... 290
12.2.1 Timer Output Control Register (TOCR) .............................................................. 290
12.2.2 Timer Start Register (TSTR)................................................................................ 291
12.2.3 Timer Start Register 2 (TSTR2)........................................................................... 292
12.2.4 Timer Constant Registers (TCOR)....................................................................... 293
12.2.5 Timer Counters (TCNT)....................................................................................... 293
12.2.6 Timer Control Registers (TCR)............................................................................ 294
12.2.7 Input Capture Register (TCPR2).......................................................................... 297
12.3 Operation........................................................................................................................... 298
12.3.1 Counter Operation................................................................................................ 298
12.3.2 Input Capture Function......................................................................................... 301
12.4 Interrupts ........................................................................................................................... 302
12.5 Usage Notes....................................................................................................................... 303
12.5.1 Register Writes..................................................................................................... 303
12.5.2 TCNT Register Reads .......................................................................................... 303
12.5.3 Resetting the RTC Frequency Divider................................................................. 303
12.5.4 External Clock Frequency.................................................................................... 303
Section 13 Bus State Controller (BSC)
......................................................................... 305
13.1 Overview........................................................................................................................... 305
13.1.1 Features................................................................................................................ 305
13.1.2 Block Diagram ..................................................................................................... 307
13.1.3 Pin Configuration................................................................................................. 308
13.1.4 Register Configuration......................................................................................... 310
13.1.5 Overview of Areas ............................................................................................... 311
13.1.6 PCMCIA Support................................................................................................. 314
13.2 Register Descriptions......................................................................................................... 318
13.2.1 Bus Control Register 1 (BCR1)............................................................................ 318
13.2.2 Bus Control Register 2 (BCR2)............................................................................ 326
13.2.3 Bus Control Register 3 (BCR3) (SH7751R Only) ............................................... 327
13.2.4 Bus Control Register 4 (BCR4) (SH7751R Only) ............................................... 329
13.2.5 Wait Control Register 1 (WCR1)......................................................................... 331
13.2.6 Wait Control Register 2 (WCR2)......................................................................... 334
13.2.7 Wait Control Register 3 (WCR3)......................................................................... 342
13.2.8 Memory Control Register (MCR) ........................................................................ 344
13.2.9 PCMCIA Control Register (PCR)........................................................................ 350
13.2.10 Synchronous DRAM Mode Register (SDMR)..................................................... 352