AT52BC1661A Просмотр технического описания (PDF) - Atmel Corporation

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производитель

AT52BC1661A

16-Mbit Flash + 8-Mbit PSRAM Stack Memory

Atmel Corporation 

Figure 3. Toggle Bit Algorithm

(Configuration Register = 00)

START

Read I/O7 - I/O0

Read I/O7 - I/O0

AT52BC1661A(T) [Preliminary]

Figure 4. Toggle Bit Algorithm

(Configuration Register = 01)

START

Read I/O7 - I/O0

Read I/O7 - I/O0

Toggle Bit =

NO

Toggle?

YES

NO I/O3, I/O5 = 1?

YES

Read I/O7 - I/O0

Twice

Toggle Bit =

NO

Toggle?

YES

NO I/O3, I/O5 = 1?

YES

Read I/O7 - I/O0

Twice

Toggle Bit =

NO

Toggle?

YES

Program/Erase

Operation Not

Successful, Write

Product ID

Exit Command

Program/Erase

Operation

Successful,

Device in

Read Mode

Toggle Bit =

NO

Toggle?

YES

Program/Erase

Operation Not

Successful, Write

Product ID

Exit Command

Program/Erase

Operation

Successful,

Write Product ID

Exit Command

Note:

1. The system should recheck the toggle bit even if

I/O5 = “1” because the toggle bit may stop toggling

as I/O5 changes to “1”.

Note:

1. The system should recheck the toggle bit even if

I/O5 = “1” because the toggle bit may stop toggling

as I/O5 changes to “1”.

11

3455A–STKD–11/04

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