SH7052 datasheet(760/919 Pages) RENESAS

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Table 20.21 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

decision

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.

20.11.7

Status Polling

1. The I/O7 status polling flag indicates the operating status in auto-program/auto-erase mode.

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

mode.

Table 20.22 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

20.11.8

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 20.23 Stipulated Transition Times to Command Wait State

Item

Symbol

Min

Max

Unit

Notes

Standby release (oscillation

stabilization time)

osc1

Programmer mode setup time

bmv

CC hold time

dwn

0ms

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