H8SXSLASH1663M datasheet(1171/1504 Pages) RENESAS

Part #	H8SX/1663M

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

PDF	1504 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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1171 / 1504 page

Section 25 Flash Memory

Rev. 2.00 Sep. 24, 2008 Page 1139 of 1468

REJ09B0412-0200

25.8.1

Boot Mode

SCI Boot mode executes programming/erasure of the user MAT or user boot MAT by means of

the control command and program data transmitted from the externally connected host via the on-

chip SCI_4.

In SCI boot mode, the tool for transmitting the control command and program data, and the

program data must be prepared in the host. The serial communications mode is set to

asynchronous mode. The system configuration in boot mode is shown in figure 25.6. Interrupts are

ignored in SCI boot mode. Configure the user system so that interrupts do not occur.

RxD4

TxD4

Software for

analyzing

control

commands

(on-chip)

Flash

memory

On-chip

RAM

SCI_4

This LSI

Host

Programming

tool and program

data

Control command,

program data

Response

PM2

MD3 to MD0

0010

Figure 25.6 System Configuration in Boot Mode

H8SX/1663M Datasheet(PDF) 1171 Page - Renesas Technology Corp