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Cypress CY14B101K User Manual

Page 6

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CY14B101K

Document Number: 001-06401 Rev. *I

Page 6 of 28

Table 2. Mode Selection

CE

WE

OE

A15 – A0

Mode

IO

Power

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

0x4E38

0xB1C7

0x83E0

0x7C1F

0x703F

0x8FC0

Read SRAM
Read SRAM
Read SRAM
Read SRAM
Read SRAM

Nonvolatile

STORE

Output Data
Output Data
Output Data
Output Data
Output Data

Output High Z

Active I

CC2

[1, 2, 3]

L

H

L

0x4E38

0xB1C7

0x83E0

0x7C1F

0x703F

0x4C63

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

[1, 2, 3]

Notes

1. The six consecutive address locations are in the order listed. WE is HIGH during all six cycles to enable a nonvolatile cycle.
2. While there are 17 address lines on the CY14B101K, only the lower 16 lines are used to control software modes.
3. O state depends on the state of OE. The IO table shown is based on OE Low.

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