SH7041A datasheet(752/923 Pages) RENESAS

Part #	SH7041A

Description	Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

PDF	923 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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714

• Sample one-block erase program

The wait time set values (number of loops) are for the case where f = 28.7 MHz. For other

frequencies, the set value is given by the following expression:

Wait time (µS)

× f (MHz) ÷ 4

The WDT overflow cycle set value is for the case where f = 28.7 MHz. For other frequencies,

ensure that the overflow cycle is a minimum of 5.3 ms.

Registers Used

R5 (input):

Memory block table pointer

R7 (output):

OK (normal) or NG (error)

R0-3, 6, 8-9:

Work registers

FLMCR1

.EQU

H’80

FLMCR2

.EQU

H’81

EBR1

.EQU

H’82

EBR2

.EQU

H’83

Wait10u

.EQU

Wait2u

.EQU

Wait200u

.EQU

1435

Wait5m

.EQU

35875

Wait20u

.EQU

144

Wait5u

.EQU

WDT_TCSR

.EQU

H’FFFF8610

WDT_9m

.EQU

H’A57D

SWESET

.EQU

B’01000000

ESUSET

.EQU

B’00100000

ESET

.EQU

B’00000010

ECLEAR

.EQU

B’11111101

ESUCLEAR

.EQU

B’11011111

EVSET

.EQU

B’00001000

EVCLEAR

.EQU

B’11110111

SWECLEAR

.EQU

B’10111111

MAXErase

.EQU

;

FlashErase

.EQU

MOV.L

#H’FFFF8500,R0

LDC

R0,GBR

;

Initialize GBR

MOV.L

#1,R2

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