ST25DV04K datasheet(23/200 Pages) STMICROELECTRONICS

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Dynamic Registers

Table 18. MB_CTRL_Dyn access

I2C

Command

Type

Address

Type

Read Dynamic Configuration (cmd code ADh) @0Dh

Fast Read Dynamic Configuration (cmd code CDh) @0Dh

Write Dynamic Configuration (cmd code AEh) @0Dh

Fast Write Dynamic Configuration (cmd code CEh) @0Dh

b0: R always, W always

b7-b1: RO

E2 = 0, 2006h

b0: R always, W always

b7-b1: RO

Table 19. MB_CTRL_Dyn

Bit

Name

Function

Factory Value

MB_EN (1)

0: Disable FTM, FTM mailbox is empty

1: Enable FTM

HOST_PUT_MSG

0: No I2C message in FTM mailbox

1: I2C has Put a message in FTM mailbox

RF_PUT_MSG

0: No RF message in FTM mailbox

1: RF has Put message in FTM mailbox

RFU

HOST_MISS_MSG

0: No message missed by I2C

1: I2C did not read RF message before watchdog time out

RF_MISS_MSG

0: No message missed by RF

1: RF did not read message before watchdog time out

HOST_CURRENT_MSG

0: No message or message not coming from I2C

1: Current Message in FTM mailbox comes from I2C

RF_CURRENT_MSG

0: No message or message not coming from RF

1: Current Message in FTM mailbox comes from RF

1. MB_EN bit is automatically reset to 0 if MB_MODE register is reset to 0.

Note:

Refer to Table 12. Dynamic registers memory map for the MB_CTRL_Dyn register.

Table 20. MB_LEN_Dyn access

I2C

Command

Type

Address

Type

Read Message Length (cmd code ABh)

Fast Read Message Length (cmd code CBh)

E2 = 0, 2007h

ST25DV04K ST25DV16K ST25DV64K

Fast transfer mode (FTM)

DS10925 - Rev 9

page 23/200

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