ZHCSBT2G November 2012 – October 2017 66AK2H06 , 66AK2H12 , 66AK2H14
PRODUCTION DATA.
The PLL default settings are determined by the BOOTMODE[7:5] bits. Table 10-27 shows the settings for various input clock frequencies. This will set the PLL to the maximum clock setting for the device.
Where OUTPUT_DIVIDE is the value of the field of SECCTL[22:19]
The configuration for the PASS PLL is also shown. The PASS PLL is configured with these values only if the Ethernet boot mode is selected with the input clock set to match the main PLL clock (not the SGMII SerDes clock). See Table 10-11 for details on configuring Ethernet boot mode. The output from the PASS PLL goes through an on-chip divider to reduce the frequency before reaching the NETCP. The PASS PLL generates 1050 MHz, and after the chip divider (/3), applies 350 MHz to the NETCP.
The Main PLL is controlled using a PLL controller and a chip-level MMR. The ARM CorePac PLL, DDR3A PLL, DDR3BPLL, and PASS PLL are controlled by chip level MMRs. For details on how to set up the PLL see Section 11.5. For details on the operation of the PLL controller module, see the KeyStone Architecture Phase Locked Loop (PLL) Controller User's Guide.
BOOTMODE [7:5] | INPUT CLOCK FREQ (MHz)(3) | 800-MHz DEVICE | 1000-MHz DEVICE | 1200-MHz DEVICE | PA = 350 MHz(1) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PLLD | PLLM | DSP ƒ | PLLD | PLLM | DSP ƒ | PLLD | PLLM | DSP ƒ | PLLD | PLLM | DSP ƒ(2) | ||
0b000 | 50.00 | 0 | 31 | 800 | 0 | 39 | 1000 | 0 | 47 | 1200 | 0 | 41 | 1050 |
0b001 | 66.67 | 0 | 23 | 800.04 | 0 | 29 | 1000.05 | 0 | 35 | 1200.06 | 1 | 62 | 1050.053 |
0b010 | 80.00 | 0 | 19 | 800 | 0 | 24 | 1000 | 0 | 29 | 1200 | 3 | 104 | 1050 |
0b011 | 100.00 | 0 | 15 | 800 | 0 | 19 | 1000 | 0 | 23 | 1200 | 0 | 20 | 1050 |
0b100 | 156.25 | 3 | 40 | 800.78 | 4 | 63 | 1000 | 2 | 45 | 1197.92 | 24 | 335 | 1050 |
0b101 | 250.00 | 4 | 31 | 800 | 0 | 7 | 1000 | 4 | 47 | 1200 | 4 | 41 | 1050 |
0b110 | 312.50 | 7 | 40 | 800.78 | 4 | 31 | 1000 | 2 | 22 | 1197.92 | 24 | 167 | 1050 |
0b111 | 122.88 | 0 | 12 | 798.72 | 3 | 64 | 999.989 | 0 | 19 | 1228.80 | 11 | 204 | 1049.6 |