R5S72030W200FP(2008) View Datasheet(PDF) - Renesas Electronics

Part Name

Description

Manufacturer

R5S72030W200FP
(Rev.:2008)

Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Renesas Electronics 

Section 3 Floating-Point Unit (FPU)................................................................. 87

3.1 Features................................................................................................................................ 87

3.2 Data Formats........................................................................................................................ 88

3.2.1 Floating-Point Format............................................................................................. 88

3.2.2 Non-Numbers (NaN) .............................................................................................. 91

3.2.3 Denormalized Numbers .......................................................................................... 92

3.3 Register Descriptions ........................................................................................................... 93

3.3.1 Floating-Point Registers ......................................................................................... 93

3.3.2 Floating-Point Status/Control Register (FPSCR).................................................... 94

3.3.3 Floating-Point Communication Register (FPUL) ................................................... 95

3.4 Rounding.............................................................................................................................. 96

3.5 FPU Exceptions ................................................................................................................... 97

3.5.1 FPU Exception Sources .......................................................................................... 97

3.5.2 FPU Exception Handling ........................................................................................ 97

Section 4 Clock Pulse Generator (CPG) ...........................................................99

4.1 Features................................................................................................................................ 99

4.2 Input/Output Pins............................................................................................................... 103

4.3 Clock Operating Modes ..................................................................................................... 104

4.4 Register Descriptions ......................................................................................................... 109

4.4.1 Frequency Control Register (FRQCR) ................................................................. 109

4.5 Changing the Frequency .................................................................................................... 112

4.5.1 Changing the Multiplication Rate......................................................................... 112

4.5.2 Changing the Division Ratio................................................................................. 113

4.5.3 Note on Using a PLL Oscillation Circuit.............................................................. 114

4.6 Usage Note......................................................................................................................... 115

Section 5 Exception Handling ......................................................................... 117

5.1 Overview............................................................................................................................ 117

5.1.1 Types of Exception Handling and Priority ........................................................... 117

5.1.2 Exception Handling Operations............................................................................ 119

5.1.3 Exception Handling Vector Table ........................................................................ 121

5.2 Resets................................................................................................................................. 123

5.2.1 Input/Output Pins.................................................................................................. 123

5.2.2 Types of Reset ...................................................................................................... 123

5.2.3 Power-On Reset .................................................................................................... 124

5.2.4 Manual Reset ........................................................................................................ 126

5.3 Address Errors ................................................................................................................... 127

5.3.1 Address Error Sources .......................................................................................... 127

5.3.2 Address Error Exception Handling ....................................................................... 128

Rev. 2.00 Apr. 16, 2008 Page x of xxx

REJ09B0313-0200

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