H8SXSLASH1663R datasheet(1165/1504 Pages) RENESAS

Part #	H8SX/1663R

Description	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

PDF	1504 Pages

Scroll/Zoom	100%

Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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1165 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1133 of 1468

REJ09B0412-0200

Bit

Bit Name

Initial

Value

R/W

Description

31 to 16



Unused

These bits should be cleared to 0.

15 to 0

F15 to F0



R/W

Frequency Set

These bits set the operating frequency of the CPU.

When the PLL multiplication function is used, set the

multiplied frequency. The setting value must be

calculated as follows:

1. The operating frequency shown in MHz units must

be rounded in a number of three decimal places and

be shown in a number of two decimal places.

2. The value multiplied by 100 is converted to the

binary digit and is written to FPEFEQ (general

For example, when the operating frequency of the CPU

is 35.000 MHz, the value is as follows:

1. The number of three decimal places of 35.000 is

rounded.

2. The formula of 35.00

× 100 = 3500 is converted to

the binary digit and B'0000 1101 1010 1100

(H'0DAC) is set to ER0.

H8SX/1663R Datasheet(PDF) 1165 Page - Renesas Technology Corp