R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 131

Manufacturer Part Number

R0K572030S000BE

KIT DEV FOR SH7203

Manufacturer

Renesas Electronics America

Renesas Starter Kits (RSK)r

CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM

Silicon Manufacturer

Kit Contents

Silicon Family Name

Silicon Core Number

R5S72030W200FP

Tool / Board Applications

General Purpose MCU, MPU, DSP, DSC

Mcu Supported Families

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

For Use With/related Products

Lead Free Status / Rohs Status

Figure 3.4 shows the floating-point register configuration. There are sixteen 32-bit floating-point

registers FPR0 to FPR15, referenced by specifying FR0 to FR15, DR0/2/4/6/8/10/12/14. The

correspondence between FRPn and the reference name is determined by the PR and SZ bits in

FPSCR. Refer figure 3.4.

1. Floating-point registers, FPRi (16 registers)

2. Single-precision floating-point registers, FRi (16 registers)

3. Double-precision floating-point registers or single-precision floating-point vector registers in

FPR0 to FPR15

FR0 to FR15 indicate FPR0 to FPR15

pairs, DRi (8 registers)

A DR register comprises two FR registers.

DR0 = {FR0, FR1}, DR2 = {FR2, FR3}, DR4 = {FR4, FR5}, DR6 = {FR6, FR7},

DR8 = {FR8, FR9}, DR10 = {FR10, FR11}, DR12 = {FR12, FR13}, DR14 = {FR14, FR15}

Floating-Point Registers

Transfer instruction case:

Operation instruction case: FPSCR.PR = 0 FPSCR.PR = 1

Figure 3.4 Floating-Point Registers

FPSCR.SZ = 0 FPSCR.SZ = 1

Reference name

Rev. 3.00 Sep. 28, 2009 Page 99 of 1650

Section 3 Floating-Point Unit (FPU)

REJ09B0313-0300