CY14B101Q1-SFXI 查看數據表（PDF） - Cypress Semiconductor

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CY14B101Q1-SFXI

1-Mbit (128 K × 8) Serial SPI nvSRAM

Cypress Semiconductor 

CY14B101Q1

CY14B101Q2

CY14B101Q3

CS

SCK

SI

Figure 12. Burst Mode Read Instruction Timing

01 2 3 456 7 01 2 3 45 6 7

20 21 22 23 0 1 2 3 4 5 6 7 0 7 0 1 2 3 4 5 6 7

Op-Code

17-bit Address

0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 A16

MSB

A3 A2 A1 A0

LSB

Data Byte 1

Data Byte N

SO

D7 D6 D5 D4 D3 D2 D1 D0 D7 D0 D7 D6 D5 D4 D3 D2 D1 D0

MSB

LSB

MSB

LSB

CS

SCK

SI

SO

Figure 13. Write Instruction Timing

0 1 2 34 5 67 0 1 23 4 56 7

20 21 22 23 0 1 2 3 4 5 6 7

00

Op-Code

0000100 00

MSB

00

17-bit Address

0 0 A16

HI-Z

A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0

LSB MSB

Data

LSB

Figure 14. Burst Mode Write Instruction Timing

CS

SCK

SI

0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 20 21 22 23 0 1 2 3 4 5 6 7 0 7 0 1 2 3 4 5 6 7

Data Byte 1

Data Byte N

Op-Code

17-bit Address

0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 A16 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0 D7 D0 D7 D6 D5 D4 D3 D2 D1 D0

MSB

LSB MSB

LSB

SO

HI-Z

nvSRAM Special Instructions

Table 7. nvSRAM Special Instructions

CY14B101Q1/CY14B101Q2/CY14B101Q3 provides four

special instructions, which enables access to the nvSRAM

specific functions: STORE, RECALL, ASDISB, and ASENB.

Table 7 lists these instructions.

Software STORE (STORE) instruction

When a STORE instruction is executed, nvSRAM performs a

Software STORE operation. The STORE operation is performed

Function Name

STORE

RECALL

ASENB

ASDISB

Opcode

0011 1100

0110 0000

0101 1001

0001 1001

Operation

Software STORE

Software RECALL

AutoStore Enable

AutoStore Disable

Document Number: 001-50091 Rev. *L

Page 13 of 27

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