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Mode selection, Stk14d88 – Cypress Perform STK14D88 User Manual

Page 10

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STK14D88

Document Number: 001-52037 Rev. **

Page 10 of 17

Mode Selection

E

W

G

A

14

–A

0

Mode

IO

Power

Notes

H

X

X

X

Not Selected

Output High Z

Standby

L

H

L

X

Read SRAM

Output Data

Active

L

L

X

X

Write SRAM

Input Data

Active

L

H

L

0x0E38
0x31C7
0x03E0

0x3C1F

0x303F
0x03F8

Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM

AutoStore Disable

Output Data
Output Data
Output Data
Output Data
Output Data
Output Data

Active

18, 19, 20

L

H

L

0x0E38
0x31C7
0x03E0

0x3C1F

0x303F
0x07F0

Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM

AutoStore Enable

Output Data
Output Data
Output Data
Output Data
Output Data
Output Data

Active

18, 19, 20

L

H

L

0x0E38
0x31C7
0x03E0

0x3C1F

0x303F

Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM

Output Data
Output Data
Output Data
Output Data
Output Data

Active

18, 19, 20

0x0FC0

Nonvolatile Store

Output High Z

I

CC2

L

H

L

0x0E38
0x31C7
0x03E0

0x3C1F

0x303F

0x0C63

Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM

Nonvolatile Recall

Output Data
Output Data
Output Data
Output Data
Output Data

Output High Z

Active

18, 19, 20

Notes

18. The six consecutive addresses must be in the order listed. W must be high during all six consecutive cycles to enable a nonvolatile cycle.
19. While there are 15 addresses on the STK14D88, only the lower 14 are used to control software modes
20. I/O state depends on the state of G. The I/O table shown assumes G low.

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