HD6433644R datasheet(184/549 Pages) RENESAS

184 / 549 page

Section 6 ROM

Rev. 6.00 Sep 12, 2006 page 164 of 526

REJ09B0326-0600

the 0 or 1 status of this bit. A byte data comparison is necessary to check whether 12V is

being applied. The relevant coding is shown below.

LABEL1:

MOV.B

@H'FF80, R1L

CMP.B

#H'FF, R1L

BEQ

LABEL1

Sample program for detection of 12 V application to FVPP (user

mode)

Table 6.17 Flash Memory DC Characteristics

VCC = 3.0 V to 5.5 V, AVCC = 3.0 V to 5.5 V, AVREF = 3.0 V to AVCC, VSS = AVSS = 0 V,

VPP = 12.0 V ±0.6 V

Ta = –20°C to +75°C (regular specifications), Ta = –40°C to +85°C (wide-range specifications)

Item

Symbol Min

Typ

Max

Unit

Test Conditions

High voltage (12 V)

application criterion

level*

FVPP, TEST

VCC + 2



11.4

FVPP current

Read

IPP



µA

VPP = 2.7 to 5.5 V



VPP = 12.6 V

Program



Erase



Note:

* The high voltage application criterion level is as shown in the table above, but a setting

of 12.0 V ±0.6 V should be made in boot mode and when programming and erasing

flash memory.

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