SH7708S View Datasheet(PDF) - Hitachi -> Renesas Electronics

Part Name

Description

Manufacturer

SH7708S

100MHz RISC CPU

Hitachi -> Renesas Electronics 

8.7.2 Canceling Hardware Standby Mode ..............................................................154

8.7.3 Hardware Standby Mode Timing..................................................................154

Section 9 On-Chip Oscillation Circuits............................................... 157

9.1 Overview............................................................................................................157

9.1.1 Features..................................................................................................157

9.2 Overview of the CPG ...........................................................................................158

9.2.1 CPG Block Diagram .................................................................................158

9.2.2 CPG Pin Configuration.............................................................................161

9.2.3 CPG Register Configuration ......................................................................161

9.3 Clock Operating Modes.........................................................................................162

9.4 Register Descriptions............................................................................................170

9.4.1 Frequency Control Register (FRQCR)..........................................................170

9.5 Changing the Frequency........................................................................................174

9.5.1 Changing the Multiplication Rate ...............................................................174

9.5.2 Changing the Division Ratio......................................................................174

9.6 PLL Standby Function..........................................................................................175

9.6.1 Overview of the PLL Standby Function........................................................175

9.6.2 Usage.....................................................................................................175

9.7 Controlling Clock Output .....................................................................................176

9.7.1 Clock Modes 0–2.....................................................................................176

9.7.2 Clock Modes 3 and 4 ................................................................................176

9.8 Overview of the Watchbog Timer (WDT) .................................................................177

9.8.1 Block Diagram of the WDT........................................................................177

9.8.2 Register Configurations.............................................................................177

9.9 WDT Registers....................................................................................................178

9.9.1 Watchdog Timer Counter (WTCNT) ............................................................178

9.9.2 Watchdog Timer Control/Status Register (WTCSR) .......................................178

9.9.3 Notes on Register Access...........................................................................180

9.10 Using the WDT .................................................................................................181

9.10.1 Canceling Standbys.................................................................................181

9.10.2 Changing the Frequency...........................................................................181

9.10.3 Using Watchdog Timer Mode....................................................................182

9.10.4 Using Interval Timer Mode.......................................................................182

9.10.5 Usage Notes ..........................................................................................183

9.11 Notes on Board Design........................................................................................184

Section 10 Bus State Controller (BSC) .............................................. 187

10.1 Overview..........................................................................................................187

10.1.1 Features................................................................................................187

10.1.2 Block Diagram .......................................................................................188

10.1.3 Pin Configuration...................................................................................190

10.1.4 Register Configuration ............................................................................192

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