MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 253

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

MPC555
USER’S MANUAL
Config.
Word
If the PRDS control bit in the PDMCR register is set and HRESET and RSTCONF are
asserted, the MPC555 / MPC556 pulls the data bus low with a weak resistor. The user
can overwrite this default by driving the appropriate bit high. See
basic reset configuration scheme.
During the assertion of the PORESET input signal, the chip assumes the default reset
configuration. This assumed configuration changes if the input signal RSTCONF is as-
serted when the PORESET is negated or the CLKOUT starts to oscillate. To ensure
RSTCONF
/
MPC556
0
1
1
Has Configuration HC
MUX
OE
INT_RESET
Figure 7-1 Reset Configuration Basic Scheme
Has Configuration (HC)
Table 7-4 Reset Configuration Options
MPC555
0
1
32
32
x
32
Rev. 15 October 2000
Coherency
Data
CMF
DATA[0:31] pins
NVM flash EEPROM register (CMFCFIG)
Internal data word default (0x0000 0000)
RESET
Internal Configuration Word
Dx (Data line)
EXT_RESET
(See
HRESET/SRESET
RSTCONF
Table
Figure 7-1
7-2)
MOTOROLA
for the
7-7