TMF8801 datasheet(58/73 Pages) OSRAM

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TMF8801

Datasheet

• PUBLIC

DS000648

• v10-00 • 2022-Dec-20

│ 57

After this the application that is located in RAM will be running. If there is no valid application you will

need to do a HW reset (toggle enable pin or power cycle).

Figure 113:

RAMREMAP_RESET

Address

Value

Meaning

BL_CMD_STAT

0x11

REMAP RAM to 0 and RESET

BL_SIZE

No parameters

BL_CSUM

0xEE

DOWNLOAD_INIT

This command is used to initialize the download HW for secure devices.

Figure 114:

DOWNLOAD_INIT

Address

Value

Meaning

BL_CMD_STAT

0x14

Initialize the HW for download from host to

TMF8801 RAM

BL_SIZE

BL_DATA0

0..0xFF

Seed

BL_CSUM

0..0xFF

W_RAM

This command writes the given data to a defined RAM region. Note that the RAM pointer has first to

be set by the command ADDR_RAM. After the command is successfully executed the RAM pointer

will point to the first byte after the written region.

Figure 115:

W_RAM

Address

Value

Meaning

BL_CMD_STAT

0x41

Write to main RAM

BL_SIZE

0..0x80

Number of bytes to be written

BL_DATA0

0..0xFF

1st byte to be written

BL_DATA1

0..0xFF

2nd byte to be written

…

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