H8SX1663 datasheet(30/1158 Pages) RENESAS

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Rev.1.00 Jun. 07, 2006 Page xxx of lii

Figure 5.4 Flowchart of Procedure Up to Interrupt Acceptance in Interrupt Control Mode 2... 119

Figure 5.5 Interrupt Exception Handling.................................................................................... 120

Figure 5.6 Block Diagram of DTC, DMAC, and Interrupt Controller ....................................... 123

Figure 5.7 Conflict between Interrupt Generation and Disabling............................................... 128

Section 6 Bus Controller (BSC)

Figure 6.1 Block Diagram of Bus Controller.............................................................................. 133

Figure 6.2 Read Strobe Negation Timing (Example of 3-State Access Space) .......................... 143

Figure 6.3

CS and Address Assertion Period Extension

(Example of Basic Bus Interface, 3-State Access Space, and RDNn = 0)................. 145

Figure 6.4

RAS Assertion Timing

(Column Address Output for 2 cycles in Full Access Mode) ................................... 160

Figure 6.5 Internal Bus Configuration........................................................................................ 168

Figure 6.6 System Clock: External Bus Clock = 4:1, External 2-State Access .......................... 171

Figure 6.7 System Clock: External Bus Clock = 2:1, External 3-State Access .......................... 172

Figure 6.8 Address Space Area Division.................................................................................... 177

Figure 6.9

CSn Signal Output Timing (n = 0 to 7) ..................................................................... 178

Figure 6.10 Timing When

CS Signal is Output to the Same Pin................................................ 179

Figure 6.11 Access Sizes and Data Alignment Control for 8-Bit Access Space

(Big Endian) ........................................................................................................... 189

Figure 6.12 Access Sizes and Data Alignment Control for 8-Bit Access Space

(Little Endian)......................................................................................................... 190

Figure 6.13 Access Sizes and Data Alignment Control for 16-Bit Access Space

(Big Endian) ........................................................................................................... 191

Figure 6.14 Access Sizes and Data Alignment Control for 16-Bit Access Space

(Little Endian)......................................................................................................... 191

Figure 6.15 16-Bit 2-State Access Space Bus Timing (Byte Access for Even Address)........... 193

Figure 6.16 16-Bit 2-State Access Space Bus Timing (Byte Access for Odd Address) ............ 194

Figure 6.17 16-Bit 2-State Access Space Bus Timing (Word Access for Even Address) ......... 195

Figure 6.18 16-Bit 3-State Access Space Bus Timing (Byte Access for Even Address)........... 196

Figure 6.19 16-Bit 3-State Access Space Bus Timing (Word Access for Odd Address) .......... 197

Figure 6.20 16-Bit 3-State Access Space Bus Timing (Word Access for Even Address) ......... 198

Figure 6.21 Example of Wait Cycle Insertion Timing................................................................ 200

Figure 6.22 Example of Read Strobe Timing ............................................................................. 201

Figure 6.23 Example of Timing when Chip Select Assertion Period is Extended ..................... 203

Figure 6.24

DACK Signal Output Timing.................................................................................. 204

Figure 6.25 16-Bit 2-State Access Space Bus Timing................................................................ 207

Figure 6.26 16-Bit 3-State Access Space Bus Timing................................................................ 208

Figure 6.27 Example of Wait Cycle Insertion Timing................................................................ 210

Figure 6.28

DACK Signal Output Timing.................................................................................. 212

Figure 6.29 Example of Burst ROM Access Timing (ASTn = 1, Two Burst Cycles)................ 215

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