MPC5200B Users Guide, Rev. 1
5-4 Freescale Semiconductor
MPC5200B Clock Domains
Table 5 -2 shows the System PLL configuration and the corresponding fsystem frequencies for a 27.0 MHz and 33.0 MHz input clock.
Table 5 -3 shows all possible clock ratios.
Table5-2. System PLL Ratios
SYS_XTAL_IN sys_pll_cfg[1] sys_pll_cfg[0] fVCOsys [MHz] fsystem [MHz]
27.0
0 0 432.0 432.0
0 1 324.0 324.0
1a
aThese are invalid configurations. The fVCOsys frequencies exceed the maximum operation frequency. See
MPC5200B Hardware Specification.
0864.0 432.0
1 1 648.0 324.0
33.0
0 0 528.0 528.0
0 1 396.0 396.0
1a01056.0 528.0
1 1 792.0 396.0
Table5 -3. MPC5200B Clock Ratios
xlb_clk_sel XLB CLOCK ipb_clk_sel IPB CLOCK pci_clk_sel[1:0] PCI CLOCK CLOCK Ratio
XLB:IPB:PCI
0f
system / 4 0 XLB 00 XLB 4:4:4
0f
system / 4 0 XLB 01 XLB/2 4:4:2
0f
system / 4 0 XLB 10 XLB/4 4:4:1
0f
system / 4 0 XLB 11 XLB/4 4:4:1
0f
system / 4 1 XLB /2 00 XLB/2 4:2:2
0f
system / 4 1 XLB /2 01 XLB/4 4:2:1
0f
system / 4 1 XLB /2 10 XLB/4 4:2:1
0f
system / 4 1 XLB /2 11 XLB/4 4:2:1
1f
system / 8 0 XLB 00 XLB 2:2:2
1f
system / 8 0 XLB 01 XLB/2 2:2:1
1f
system / 8 0 XLB 10 XLB/4 2:2:0.5
1f
system / 8 0 XLB 11 XLB/4 2:2:0.5
1f
system / 8 1 XLB /2 00 XLB/2 2:1:1
1f
system / 8 1 XLB /2 01 XLB/4 2:1:0.5
1f
system / 8 1 XLB /2 10 XLB/4 2:1:0.5
1f
system / 8 1 XLB /2 11 XLB/4 2:1:0.5