SH7136 datasheet(13/1160 Pages) RENESAS

13 / 1160 page

Rev. 2.00 Sep. 10, 2008 Page xiii of xxvi

8.2.9

DTC Vector Base Register (DTCVBR)................................................................ 169

8.2.10 Bus Function Extending Register (BSCEHR) ...................................................... 169

8.3

Activation Sources ............................................................................................................. 170

8.4

Location of Transfer Information and DTC Vector Table ................................................. 170

8.5

Operation ........................................................................................................................... 175

8.5.1

Transfer Information Read Skip Function ............................................................ 180

8.5.2

Transfer Information Writeback Skip Function .................................................... 181

8.5.3

Normal Transfer Mode ......................................................................................... 181

8.5.4

Repeat Transfer Mode........................................................................................... 182

8.5.5

Block Transfer Mode ............................................................................................ 184

8.5.6

Chain Transfer ...................................................................................................... 185

8.5.7

Operation Timing.................................................................................................. 187

8.5.8

Number of DTC Execution Cycles ....................................................................... 190

8.5.9

DTC Bus Release Timing ..................................................................................... 192

8.5.10 DTC Activation Priority Order ............................................................................. 195

8.6

DTC Activation by Interrupt.............................................................................................. 196

8.7

Examples of Use of the DTC ............................................................................................. 197

8.7.1

Normal Transfer Mode ......................................................................................... 197

8.7.2

Chain Transfer when Counter = 0......................................................................... 197

8.8

Interrupt Sources................................................................................................................ 199

8.9

Usage Notes ....................................................................................................................... 199

8.9.1

Module Standby Mode Setting ............................................................................. 199

8.9.2

On-Chip RAM ...................................................................................................... 199

8.9.3

DTCE Bit Setting.................................................................................................. 199

8.9.4

Chain Transfer ...................................................................................................... 199

8.9.5

Transfer Information Start Address, Source Address, and Destination

Address ................................................................................................................. 200

8.9.6

Access to DTC Registers through DTC ................................................................ 200

8.9.7

Notes on IRQ Interrupt as DTC Activation Source .............................................. 200

8.9.8

Notes on SCI as DTC Activation Sources ............................................................ 200

8.9.9

Clearing Interrupt Source Flag.............................................................................. 200

8.9.10 Conflict between NMI Interrupt and DTC Activation .......................................... 200

8.9.11 Operation When a DTC Activation Request is Cancelled While in Progress....... 201

Section 9 Bus State Controller (BSC)................................................................203

9.1

Features.............................................................................................................................. 203

9.2

Input/Output Pins ...............................................................................................................205

9.3

Area Overview ...................................................................................................................205

9.3.1

Area Division........................................................................................................ 205

9.3.2

Address Map ......................................................................................................... 205

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