TPS-1 User’s Manual: Hardware 5. TPS-1 boot subsystem
R19UH0081ED0107 Rev. 1.07 page 46 of 86
Jul 30, 2018
5.2.2.1. SPI Command Set
A SPI memory device must support the following commands. Writing to the flash requires the command Sector Erase (SE). It must be possible to
write sectors with a size of 4 Kbyte.
Table 5-3: SPI Boot Loader Driver Commands
Write enable 0x06 0 0 0
Read status register 0x05 0 0 1
Page Program 0x02 3 0 1 to 256
Chip (Bulk) erase 0xC7 0 0 0
(*) This command requires a sector size of 4 Kbyte.
5.2.2.2. SPI Flash Timing Requirements
Figure 5-2: Serial Flash output timing requirement
/CS Chip-select input of serial Flash device
CLK Clock input of serial Flash device
DO Data output of serial Flash device
DI Data input of serial Flash device
tCLQV Clock low to output valid time (max. 8 ns)
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