The BootROM sets configuration registers that apply to each boot mode. For SelectMAP boot mode, the BootROM sets the registers to the initial values shown in the following table.
| Register Name | Base Address | Register Value | Description |
|---|---|---|---|
| RST_SBI | 0xF126_0324 |
0x0000_0000
|
SBI reset not asserted |
| SBI_MODE | 0xF122_0000 |
0x0000_0000
|
Device configuration mode and JTAG does not pass through SBI |
| SBI_CTRL | 0xF122_0004 |
0x0000_0021
|
Enable SBI, SelectMAP data transfer |
| PMCPLL_CTRL | 0xF126_0040 |
0x0002_4800
|
PMC PLL (PPLL) setup uses reset defaults (REF_CLK multiplied by 72 (FBDIV) and divided by 4 (CLKOUTDIV) |