H8SSLASH2218 datasheet(33/750 Pages) RENESAS

33 / 750 page

Rev.6.00 Jun. 03, 2008 Page xxxi of xlvi

REJ09B0074-0600

Figure 6.16 Bus Timing for 16-Bit 3-State Access Space (1) (Even Address Byte Access) ..... 142

Figure 6.17 Bus Timing for 16-Bit 3-State Access Space (2) (Odd Address Byte Access) ...... 143

Figure 6.18 Bus Timing for 16-Bit 3-State Access Space (3) (Word Access)........................... 144

Figure 6.19 Example of Wait State Insertion Timing ................................................................ 146

Figure 6.20 Example of Burst ROM Access Timing (When AST0 = BRSTS1 = 1)................. 148

Figure 6.21 Example of Burst ROM Access Timing (When AST0 = BRSTS1 = 0)................. 148

Figure 6.22 Example of Idle Cycle Operation (1) ..................................................................... 150

Figure 6.23 Example of Idle Cycle Operation (2) ..................................................................... 151

Figure 6.24 Relationship between Chip Select (

CS) and Read (RD).........................................152

Figure 6.25 Bus-Released State Transition Timing ................................................................... 154

Section 7 DMA Controller (DMAC)

Figure 7.1

Block Diagram of DMAC ...................................................................................... 158

Figure 7.2

Operation in Sequential Mode................................................................................ 179

Figure 7.3

Example of Sequential Mode Setting Procedure .................................................... 180

Figure 7.4

Operation in Idle Mode .......................................................................................... 181

Figure 7.5

Example of Idle Mode Setting Procedure............................................................... 182

Figure 7.6

Operation in Repeat mode ...................................................................................... 184

Figure 7.7

Example of Repeat Mode Setting Procedure.......................................................... 185

Figure 7.8

Operation in Normal Mode .................................................................................... 187

Figure 7.9

Example of Normal Mode Setting Procedure......................................................... 188

Figure 7.10 Operation in Block Transfer Mode (BLKDIR = 0) ................................................ 190

Figure 7.11 Operation in Block Transfer Mode (BLKDIR = 1) ................................................ 191

Figure 7.12 Operation Flow in Block Transfer Mode ............................................................... 192

Figure 7.13 Example of Block Transfer Mode Setting Procedure............................................. 193

Figure 7.14 Example of DMA Transfer Bus Timing................................................................. 196

Figure 7.15 Example of Short Address Mode Transfer ............................................................. 197

Figure 7.16 Example of Full Address Mode (Cycle Steal) Transfer ......................................... 198

Figure 7.17 Example of Full Address Mode (Burst Mode) Transfer......................................... 199

Figure 7.18 Example of Full Address Mode (Block Transfer Mode) Transfer ......................... 200

Figure 7.19 Example of

DREQ Level Activated Normal Mode Transfer .................................201

Figure 7.20 Example of Multi-Channel Transfer ...................................................................... 202

Figure 7.21 Example of Procedure for Continuing Transfer on Channel Interrupted

by NMI Interrupt .................................................................................................... 204

Figure 7.22 Example of Procedure for Forcibly Terminating DMAC Operation...................... 204

Figure 7.23 Example of Procedure for Clearing Full Address Mode ........................................ 205

Figure 7.24 Block Diagram of Transfer End/Transfer Break Interrupt ..................................... 206

Figure 7.25 DMAC Register Update Timing ............................................................................ 207

Figure 7.26 Contention between DMAC Register Update and CPU Read................................ 208

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