Renesas TPS-1

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
Instruction
Code
Address bytes
Dummy bytes
Data bytes
Write enable 0x06 0 0 0
Write disable
0x04
0
0
0
Read status register 0x05 0 0 1
Read Data
0x03
3
0
1 - ∞
Page Program 0x02 3 0 1 to 256
*Sector Erase (4KB)
0x20
3
0
0
Chip (Bulk) erase 0xC7 0 0 0
Read Identification
0x9F
0
0
3
(*) 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)