ARM R4 Manuale Utente

Processor Signal Descriptions

ARM DDI 0363E

A-23

ID013010

Non-Confidential, Unrestricted Access

A.13

FPU signals

Table A-18 shows the FPU signals. These signals are only driven if the processor is configured
to include the floating-point logic.

Table A-18 FPU signals

Signal

Direction

Clocking

Description

FPIXC

Output

CLKIN

Masked floating-point inexact exception

FPOFC

Output

CLKIN

Masked floating-point overflow exception

FPUFC

Output

CLKIN

Masked floating-point underflow exception

FPIOC

Output

CLKIN

Masked floating-point invalid operation exception

FPDZC

Output

CLKIN

Masked floating-point divide-by-zero exception

FPIDC

Output

CLKIN

Masked floating-point input denormal exception