Renesas M30830T-RPD-E, Руководство пользователя

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Table 3.4 Switch settings of the M30830T-RPD-E (4/4)
Signal Switch Setting Description
PLL
JP2
M30830T-RPDM
Board
Use this setting normally.
Set this when using the PLL function.
JP2
PLL
JP2
PLL
ON OFF
(Factory-setting)
ON OFF
IMPORTANT
Note on PLL Function:
• To use the PLL function, the following settings are necessary.
(1) Set SW1 to PLL.
(2) Set SW2 to P86.
(3) Set JP2 of MCU board M30830T-RPDM to ON.
(4) Set port P87 direction register (bit 7 of 03C6h) to input.
(5) Set port XC switch bit (bit 4 of 0006h) to I/O function.
(6) Set port P86 direction register (bit 6 of 03C6h) to input.
(7) Connect the VSS to port P86.
3.3 Selecting Clock Supply
There are two ways to supply a clock to the MCU, using the oscillator circuit of the emulation pod
or using the oscillator circuit on the target system. Table 3.4 shows the factory-settings of each clock
supply.
Table 3.4 Clock supply to the MCU
IMPORTANT
Notes on Changing Clock Supply:
• Clock supply can be set by the Init dialog box when starting up the emulator
debugger or inputting CLK command on the script window.
• For pins X
CIN
and X
COUT
, it is necessary to set the switches in the emulation pod when
using the clock on the target system. For details, refer to "3.2 Switch Settings" (page 25).
Clock Description Display of emulator debugger Factory-setting
X
IN
-X
OUT
X
CIN
-X
COUT
Internal oscillator circuit of emulation pod
(OSC-3: 20 MHz)
Target system
Internal oscillator circuit of emulation pod
(32.768 KHz)
Target system
Internal
External
External
Internal
Yes
-
-
Yes