38C3 datasheet(133/224 Pages) RENESAS

Part #	38C3

Description	8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES

PDF	224 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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133 / 224 page

2-68

38C3 Group User’s Manual

APPLICATION

2.6 ROM correct function

Fig. 2.6.5 Control procedure

Control procedure:

Initialization

RESET

Setting of serial I/O

SCLK1 selected

Note: V shows the internal operation of microcomputer.

E2PROM is connected ?

(P51 = “H” ?)

Data corresponding to the following

registers, which have been set to

E2PROM beforehand, is read and the data

is stored to each register:

•ROM correct enable register 1

•ROM correct address registers 1–8

•ROM correct data 1–8

Main processing

ROM correct is enabled ?

(RC1, X = “H” ?)

ROM correct

address X

Correct data X

P4 (address 000816), bit 7

CS signal output

V (Note)

SIOCON1 (address 001916)

SIOCON2 (address 001A16)

X1X01XXX2

XXXXXXX02

Setting of port direction register

“L” output as termination of unused pins

P4 (address 000816), bit 7

P4D (address 000916)

P4 (address 000816)

11X1XXXX2

00X0XXXX2

38C3 Datasheet(PDF) 133 Page - Renesas Technology Corp