mpc8536e Freescale Semiconductor, Inc, mpc8536e Datasheet - Page 31

• Manufacturer Part Number: mpc8536e
• Description: Mpc8536e Powerquicctm Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

2.4.6
Please note the following FIFO maximum speed restrictions based on platform speed. The “platform clock (CCB) frequency”
in the following formula refers to the maximum platform (CCB) frequency of the speed bins the part belongs to, which is
defined in
For FIFO GMII mode:
For example, if the platform frequency is 533 MHz, the FIFO TX/RX clock frequency should be no more than 167 MHz
FIFO TX/RX clock frequency <= platform clock frequency/3.2
2.4.7
For information on the input clocks of other functional blocks of the platform such as SerDes, and eTSEC, see the specific
section of this document.
2.5
This section describes the AC electrical specifications for the RESET initialization timing requirements of the MPC8536E.
Table 10
Table 11
Freescale Semiconductor
Required assertion time of HREST
Minimum assertion time for SRESET
PLL input setup time with stable SYSCLK before HRESET negation
Input setup time for POR configurations (other than PLL config) with respect to negation of
HRESET
Input hold time for all POR configurations (including PLL config) with respect to negation of
HRESET
Maximum valid-to-high impedance time for actively driven POR configurations with respect to
negation of HRESET
HRESET rise time
Notes:
1. SYSCLK is the primary clock input for the MPC8536E.
FIFO TX/RX clock frequency <= platform clock frequency/3.2
For FIFO encoded mode:
For example, if the platform frequency is 533 MHz, the FIFO TX/RX clock frequency should be no more than
167 MHz
provides the RESET initialization AC timing specifications for the DDR SDRAM component(s).
provides the PLL lock times.
Table
RESET Initialization
PLL lock times
Local bus PLL
PCI bus lock time
Platform to FIFO Restrictions
Other Input Clocks
73.
MPC8536E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 2
Parameter/Condition
Table 10. RESET Initialization Timing Specifications
Parameter/Condition
Table 11. PLL Lock Times
Min
—
—
—
Max
100
50
50
Min
100
100
Unit
—
—
μs
μs
μs
3
4
2
Max
—
—
—
—
—
5
1
RESET Initialization
Notes
—
—
—
SYSCLKs
SYSCLKs
SYSCLKs
SYSCLK
Sysclk
Unit
μs
μs
Notes
—
—
—
1
1
1
1
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