H8SXSLASH1663 datasheet(946/1158 Pages) RENESAS

946 / 1158 page

Section 21 Flash Memory (0.18-

µm F-ZTAT Version)

Rev.1.00 Jun. 07, 2006 Page 894 of 1102

REJ09B0294-0100

(2) Flash Pass and Fail Parameter (FPFR: General Register R0L of CPU)

FPFR indicates the return values of the initialization, programming, and erasure results. The

meaning of the bits in FPFR varies depending on the processing.

(a) Initialization before programming/erasing

FPFR indicates the return value of the initialization result.



Bit

Bit Name

Bit

Bit Name

Initial

Value

R/W

Description

7 to 2



Unused

These bits return 0.



R/W

Frequency Error Detect

Compares the specified CPU operating frequency with

the operating frequencies supported by this LSI, and

returns the result.

0: Setting of operating frequency is normal

1: Setting of operating frequency is abnormal



R/W

Success/Fail

Returns the initialization result.

0: Initialization has ended normally (no error)

1: Initialization has ended abnormally (error occurs)

(b) Programming

FPFR indicates the return value of the programming result.



Bit

Bit Name

Bit

Bit Name

Initial

Value

R/W

Description



Unused

Returns 0.

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