ZHCSBT2G November 2012 – October 2017 66AK2H06 , 66AK2H12 , 66AK2H14
PRODUCTION DATA.
The ROM Bootloader (RBL) uses a set of tables to carry out the boot process. The boot parameter table is the most common format the RBL employs to determine the boot flow. These boot parameter tables have certain parameters common across all the boot modes, while the rest of the parameters are unique to the boot modes. The common entries in the boot parameter table are shown in Table 10-16.
BYTE OFFSET | NAME | DESCRIPTION |
---|---|---|
0 | Length | The length of the table, including the length field, in bytes. |
2 | Checksum | The 16 bits ones complement of the ones complement of the entire table. A value of 0 will disable checksum verification of the table by the boot ROM. |
4 | Boot Mode | Internal values used by RBL for different boot modes. |
6 | Port Num | Identifies the device port number to boot from, if applicable |
8 | SW PLL, MSW | PLL configuration, MSW |
10 | SW PLL, LSW | PLL configuration, LSW |
12 | Sec PLL Config, MSW | ARM PLL configuration, MSW |
14 | Sec PLL Config, LSW | ARM PLL configuration, LSW |
16 | System Freq | The frequency of the system clock in MHz |
18 | Core Freq | The frequency of the core clock in MHz |
20 | Boot Master | Set to TRUE if C66x is the master core. |