MCP3564-ESLASHST datasheet(93/108 Pages) MICROCHIP

93 / 108 page

 2019-2021 Microchip Technology Inc.

DS20006181C-page 93

MCP3561/2/4

8.14

LOCK Register

8.15

RESERVED Register

Name

Bits

Address

Cof

LOCK

0xD

R/W

LOCK: SPI WRITE MODE LOCKING PASSWORD VALUE REGISTER

R/W-1

R/W-0

R/W-1

R/W-0

R/W-1

R/W-0

R/W-1

LOCK[7:0]

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

Bit 7-0

LOCK[7:0]: Write Access Password Entry Code

0xA5 = Write access is allowed on the full register map. CRC on register map values is not calculated

(CRCCFG[15:0] = 0x0000) – Default.

Any code except 0xA5 = Write access is not allowed on the full register map. Only the LOCK register

is writable. CRC on register map is calculated continuously only when DMCLK is running.

Name

Bits

Address

Cof

RESERVED

0xE

R/W

RESERVED REGISTER

R/W (default depends on product denomination)

RESERVED[15:0]

bit 15

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

Bit 15-0

RESERVED[15:0]: Should be set to

MCP3561: 0x000C

MCP3562: 0x000D

MCP3564: 0x000F

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