CMD-5xx 08/07/02
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Personality Module (PM-5xx) Options and Settings
The PM-5xx modules provide the CPU with associated support hardware such as oscillator(s), debug support connectors, and
options for reconfiguring the CPU. Nexus 50 pin standard development connector is also provided on the MPC561-566 versions.
The -T option PM boards provide a ZIF (zero insertion force) type socket for the host processor.
CONFIG
Switch
The CONFIGURATION SWITCH provides user options for MODCK settings, RSTCNF* signal operation, and internal flash
programming enables. All PM modules provide the 6 switches but not all devices support internal Flash.
POSITION
OPTION
1,2,3
MODCK 1,2,3 setting.
ON = high level during RESET.
OFF = low level during RESET.
Default = 1,3 Off, 2 ON. 4MHz crystal oscillator reference, 20MHz default clock.
4
RSTCNF* Signal enable.
ON = External Reset Configuration Word Enabled
OFF = Internal Hard Reset Configuration Word
Default = ON. CMD-555 board provides configuration Word.
5
EPEE enable. MPC555/6 Internal CMF flash array programming enable.
ON = EPEE signal enabled for programming internal CMF flash array.
OFF = EPEE signal disabled.
6
VPP enable. MPC555/6 Internal CMF flash array VPP programming voltage enable.
ON = VPP enabled for programming CMF flash Boot Block.
OFF = VPP disabled.
PM-555/6 Hardware Options
VDDSRAM Voltage Source Option
VDDSRAM is connected to the 3.3V supply on the PM-555 board by a zero ohm resistor R11. To apply a different supply for the
VDDSRAM pin, the R11 resistor should be removed and the CMD-555 POWER_PORT connection can be used for applying the
new voltage source.
VDDSYN Voltage Source
The VDDSYN connection to the MPC555/6 may be isolated by from the 3.3V supply by removing inductor L1. Alternate voltage
source can then be applied the VDDSYN at the CMD555 POWER_PORT.
KAPWR Voltage Source
The KAPWR connection is connected to the 3.3V supply on the PM-555 board by zero ohm resistor R8. To apply a different
voltage source for low power back-up operations, R8 should be removed and the new source applied to the CMD555
POWER_PORT pin for the KAPWR connection.
VRH and VRL QADC Reference Supplies
Zero ohm resistors R9 and R10 provide isolation of VRH and VRL reference signals respectfully. One or both of these resistors
may be removed to apply an external reference voltage at the CMD-555/6 QADC_A Port.
PM- 555/6 -T Additional Options
•
R36 / 37 Resistors -
BDM Port VFLS1 signal selection option.
•
R38 / 39 Resistors -
BDM Port VFLS0 signal selection option.
•
C4 XFC Filter -
PLL operation XFC filter capacitor value option.
•
R35 Resistor
- PORESET level detector isolation, remove to isolate 5V reset generator for PORESET signal.
