E702289_SH7290 Datasheet, PDF (192/252 Pages) Renesas Technology Corp – SH7290 E10A Emulator

5.2.14 JTAG_CLOCK: JCK
Description:
Displays or sets the JTAG clock (TCK) frequency.
Format:
Displays the JTAG clock (TCK) frequency.
jck
Sets the JTAG clock (TCK) frequency.
jck <jck_opt>
Table 5.15 JTAG_CLOCK Command Parameter
Parameter
Type
Description
<jck_opt>
Numerical value Sets one of the JTAG clock (TCK) frequency.
(PCMCIA used: 3.75 MHz, 7.5 MHz, or 15 MHz)
3: 3.75 MHz
7: 7.5 MHz
15: 15 MHz
(PCI used: 4.125 MHz, 8.25 MHz, or 16.5 MHz)
4: 4.125 MHz
8: 8.25 MHz
16: 16.5 MHz
Note: The range of frequencies that the Hitachi-UDI operates at differs according to the devices
used. For details, refer to section 6.5.4, Notes on Using the JTAG Clock (TCK) and AUD
Clock (AUDCK).
Examples:
(when PCMCIA used):
To set the JTAG clock (TCK) frequency:
>jck 15 (RET)
JTAG Clock 15MHz
To display the JTAG clock (TCK) frequency:
>jck (RET)
JTAG Clock 15MHz
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