Configuration Memory: Difference between revisions
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| Line 205: | Line 205: | ||
|- | |- | ||
| 1 | | 1 | ||
| | | IsJtagConnected | ||
|- | |- | ||
| 2-7 | | 2-7 | ||
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== 0x1FF80015 == | == 0x1FF80015 == | ||
{| class="wikitable" border="1" | |||
! Value | |||
! Boot Env | |||
|- | |||
| 0 | |||
| Prod | |||
|- | |||
| 1 | |||
| Dev | |||
|- | |||
| 2 | |||
| Debugger | |||
|- | |||
| 3 | |||
| Firm | |||
|} | |||
The ARM11 loads this value from 0x1FFFFFF0+1 during startup, which is written by the ARM9 during ARM9<>ARM11 kernel sync. | The ARM11 loads this value from 0x1FFFFFF0+1 during startup, which is written by the ARM9 during ARM9<>ARM11 kernel sync. | ||
When this field is zero, bit0 for UNITINFO is set for retail. When this field is non-zero, bit0 for UNITINFO is clear for dev/debug units, and an ARM11 kernel state flag which enables debugging is set. | When this field is zero, bit0 for UNITINFO is set for retail. When this field is non-zero, bit0 for UNITINFO is clear for dev/debug units, and an ARM11 kernel state flag which enables debugging is set. JTAG is only enabled for debugger and "firm" modes (bit1). | ||
== 0x1FF80016 == | == 0x1FF80016 == | ||
{| class="wikitable" border="1" | |||
! Value | |||
! Description | |||
|- | |||
| 0 | |||
| Cold Boot | |||
|- | |||
| 1 | |||
| Reset from CTR mode | |||
|- | |||
| 3 | |||
| Reset from TWL mode | |||
|- | |||
| 5 | |||
| Reset from NTR mode | |||
|- | |||
| 7 | |||
| Reset from AGB mode | |||
|} | |||
The ARM11 loads this value from 0x1FFFFFF0+2 during startup, which is written by the ARM9 during ARM9<>ARM11 kernel sync. | The ARM11 loads this value from 0x1FFFFFF0+2 during startup, which is written by the ARM9 during ARM9<>ARM11 kernel sync. | ||