Freescale Semiconductor PE Micro Cyclone Pro User Manual page 44

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CYCLONE PRO
38
The MON08 Header connections are shown on the right hand side for
user reference. Please refer to Chapter 4 for detailed information.
Clock Selection
The user may choose to use the "Cyclone Clock" to overdrive the target
RC or Crystal circuitry. In this case either the 9.8304 MHz or 4.9152 MHz
oscillator signal of the Cyclone PRO is connected to the target MON08
Header Pin 13 through the ribbon cable. The user should connect the
target MCU OSC1 pin to Pin 13 of the MON08 Header.
If the user chooses to use the "Target Clock", they must NOT connect
anything to Pin 13 of the target MON08 Header. The 9.8304 MHz
oscillator signal of the Cyclone PRO will be disabled.
Clock Division
The user may freely choose the clock division (if supported by the target)
as long as the target bus frequency stays within specification. If the port
pin that determines the clock division is not connected to the target
MON08 Header, the user can safely ignore this selection.
Typically the clock division does not affect the quality of communications
between the Cyclone PRO and the target. Normally a smaller clock
division leads to faster target bus frequencies, and faster communications
between the Cyclone PRO and the target, which in turn leads to a shorter
programming time.
Baud Rate and Security Settings
This configuration field provides faster monitor ROM entrance for known
baud rate and security bytes.
If the "Before attempting auto-baud and ignoring security, try these
settings" checkbox is checked, the Baud Rate and Security Bytes that are
specified in this field are tried first when the Cyclone PRO contacts the
target. If the target enters the Monitor Mode successfully, the Cyclone
PRO will execute the instructed programming operations immediately.
If "Before attempting auto-baud and ignoring security, try these settings"
is NOT checked, or if the target fails to enter the Monitor Mode using the
specified baud rate and security bytes, the Cyclone PRO will
automatically detect the communications baud rate, ignore the security,
enter the Monitor Mode, erase the target device, power cycle the target,
and re-enter the Monitor Mode using blank security bytes.
Cyclone PRO User Manual

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