Freescale Semiconductor MPC8358E Hardware Specificftion page 88

Clocking
In addition, some of the internal units may be required to be shut off or operate at lower frequency than
the csb_clk frequency. Those units have a default clock ratio that can be configured by a memory mapped
register after the device comes out of reset.
frequency.
Security core
PCI and DMA complex
1
With limitation, only for slow csb_clk rates, up to 166 MHz.
Table 69 provides the operating frequencies for the TBGA package under recommended operating
conditions (see Table 2). All frequency combinations shown in the table below may not be available.
Maximum operating frequencies depend on the part ordered, see
Addressed by this Document,"
authorized distributor for more information.
Characteristic
e300 core frequency ( core_clk )
Coherent system bus frequency ( csb_clk )
3
QUICC Engine frequency
DDR and DDR2 memory bus frequency (MCLK)
Local bus frequency (LCLK n )
PCI input frequency (CLKIN or PCI_CLK)
Security core maximum internal operating frequency
1
The CLKIN frequency, RCWL[SPMF], and RCWL[COREPLL] settings must be chosen such that the resulting csb_clk , MCLK,
LCLK[0:2], and core_clk frequencies do not exceed their respective maximum or minimum operating frequencies.
2
The 667 MHz core frequency is based on a 1.3 V V
3
The 500 MHz QE frequency is based on a 1.3 V V
4
The DDR data rate is 2x the DDR memory bus frequency.
5
The local bus frequency is 1/2, 1/4, or 1/8 of the lb_clk frequency (depending on LCRR[CLKDIV]) which is in turn 1× or 2× the
csb_clk frequency (depending on RCWL[LBCM]).
MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 4
88
Table 68
Table 68. Configurable Clock Units
Unit
for part ordering details and contact your Freescale sales representative or
Table 69. Operating Frequencies for the TBGA Package
1
( ce_clk )
4
5
DD
DD
specifies which units have a configurable clock
Default
Frequency
csb_clk csb_clk
/3 Off,
csb_clk
/3
csb_clk
csb_clk Off,
Section 25.1, "Part Numbers Fully
400 MHz 533 MHz
266–400 266–533
133–333
266–500
100–166.67
16.67–133
25–66.67
133
supply voltage.
supply voltage.
Options
1
, csb_clk
/2,
2
667 MHz
266–667
133 166
Freescale Semiconductor
Unit
MHz
MHz
MHz
MHz
MHz
MHz
MHz