SH7018 datasheet(387/431 Pages) RENESAS

387 / 431 page

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Table 16.19 Status Read Mode Return Commands

Pin Name

I/O7

I/O6

I/O5

I/O4

I/O3

I/O2

I/O1

I/O0

Attribute

Normal

end

identification

Command

error

Program-

ming error

Erase

error

——

Program-

ming or

erase count

exceeded

Effective

address error

Initial value 00000

Indications Normal

end: 0

Abnormal

end: 1

Command

Error: 1

Otherwise: 0

Program-

ming

Error: 1

Otherwise: 0

Erasing

Error: 1

Otherwise: 0

——

Count

exceeded: 1

Otherwise: 0

Effective

address

Error: 1

Otherwise: 0

Note:

I/O2 and I/O3 are undefined at present.

16.11.7

Status Polling

1. I/O7 status polling is a flag that indicates the operating status in auto-program/auto-erase

mode.

2. I/O6 status polling is a flag that indicates a normal or abnormal end in auto-program/auto-erase

mode.

Table 16.20 Status Polling Output Truth Table

Pin Name

During Internal

Operation

Abnormal End

Normal End

I/O7

0101

I/O6

0011

I/O0 to I/O5

0000

16.11.8

Programmer Mode Transition Time

Commands cannot be accepted during the oscillation stabilization period or the programmer mode

setup period. After the programmer mode setup time, a transition is made to memory read mode.

Table 16.21 Stipulated Transition Times to Command Wait State

Item

Symbol

Min

Max

Unit

Standby release (oscillation stabilization time)

osc1

—

Programmer mode setup time

bmv

—

CC hold time

dwn

—

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