TXE8124: TXE8124 IO Setting Time in SPI Burst Mode

Part Number: TXE8124

Hi,

Regarding the TXE8124  - when writing to all three Output Port Registers in SPI Burst mode, when is the output state of the physical IO pins actually updated? Is it updated in chunks after each 8-bit port register write or all at once after the entire 40-bit extended SPI transaction?

I know the datasheet says after the 24th SCLK pulse, but I did not find any specifics to its behavior when in burst mode.

Thank you in advance for your help!
Greg