vii
11.1.3 Pin Configuration .................................................................................................. 334
11.1.4 Register Configuration .......................................................................................... 335
11.2
Register Descriptions.......................................................................................................... 337
11.2.1 DMA Source Address Registers 0–3 (SAR0–SAR3) ........................................... 337
11.2.2 DMA Destination Address Registers 0–3 (DAR0–DAR3) .................................. 338
11.2.3 DMA Transfer Count Registers 0–3 (DMATCR0–DMATCR3) ......................... 339
11.2.4 DMA Channel Control Registers 0–3 (CHCR0–CHCR3).................................... 340
11.2.5 DMA Operation Register (DMAOR).................................................................... 347
11.3
Operation ............................................................................................................................ 349
11.3.1 DMA Transfer Flow.............................................................................................. 349
11.3.2 DMA Transfer Requests........................................................................................ 351
11.3.3 Channel Priority .................................................................................................... 353
11.3.4 DMA Transfer Types ............................................................................................ 356
11.3.5 Number of Bus Cycle States and
DREQ
Pin Sampling Timing ........................... 367
11.3.6 Source Address Reload Function .......................................................................... 376
11.3.7 DMA Transfer Ending Conditions........................................................................ 378
11.4
Compare Match Timer (CMT) ........................................................................................... 380
11.4.1 Overview ............................................................................................................... 380
11.4.2 Register Descriptions ............................................................................................ 381
11.4.3 Operation ............................................................................................................... 384
11.4.4 Compare Match ..................................................................................................... 385
11.5
Examples of Use................................................................................................................. 387
11.5.1 Example of DMA Transfer between On-Chip IrDA and External Memory ........ 387
11.5.2 Example of DMA Transfer between A/D Converter and External Memory ........ 388
11.5.3 Example of DMA Transfer between External Memory and SCIF Transmitter
(Indirect Address On)............................................................................................ 389
11.6
Usage Notes........................................................................................................................ 391
Section 12 Timer (TMU)
.................................................................................................... 393
12.1
Overview ............................................................................................................................ 393
12.1.1 Features ................................................................................................................. 393
12.1.2 Block Diagram ...................................................................................................... 394
12.1.3 Pin Configuration .................................................................................................. 395
12.1.4 Register Configuration .......................................................................................... 395
12.2
TMU Registers ................................................................................................................... 396
12.2.1 Timer Output Control Register (TOCR) ............................................................... 396
12.2.2 Timer Start Register (TSTR)................................................................................. 396
12.2.3 Timer Control Registers (TCR) ............................................................................ 397
12.2.4 Timer Constant Registers (TCOR)........................................................................ 401
12.2.5 Timer Counters (TCNT)........................................................................................ 401
12.2.6 Input Capture Register (TCPR2)........................................................................... 403
12.3
TMU Operation .................................................................................................................. 404
12.3.1 General Operation ................................................................................................. 404
Summary of Contents for SH7709S
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