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6.3.6.1 The sequence of System clock setting
The system clock is selected by CGOSCCR. After setting CGOSCCR, the PLL is set by CGPLLSEL
and CGOSCCR and the clock gear is set by CGSYSCR.
The sequence of PLL setting
Initial state after releasing reset
PMCR/PMPUP/PMPDN/PMIE = disable
CGOSCCR<XEN2> = "1"
(Oscillation of internal high-speed clock is en-
abled.)
CGOSCCR<OSCSEL> = "0"
(Selected an internal high-speed oscillator.)
CGOSCCR<PLLON> = "0" (Stop PLL)
CGPLLSEL<PLLSEL> = "0" (Use fosc)
CGSYSCR<GEAR
[2:0]
> = "000" (No division)
fosc setting (in the case of using internal high-
speed oscillator)
The specification is not need.
fosc setting (in the case of using external
high-speed oscillator)
CGOSCCR<WUPSEL2>= "1"
CGOSCCR<WUPSEL1>= "0"
(Select an external high speed oscillator.)
CGOSCCR<HOSCON> = "1"
(Use the external high-speed oscillator)
CGOSCCR<XEN1> = "1"
(Start external high speed oscillation.)
<Operate warm-up counter>
CGOSCCR<OSCSEL>= "1"
(Select an external high speed oscillator.)
Confirm CGOSCCR<OSCSEL> = "1"
CGOSCCR<XEN2> = "0"
(Stop an internal high speed oscillator.)
Set PLL
Set Clock Gear
TMPM3V6/M3V4
6. Clock/Mode control
6.3 Clock control
Page 60
2019-02-06
Summary of Contents for TMPM3V4
Page 1: ...32 Bit RISC Microcontroller TX03 Series TMPM3V6 M3V4 ...
Page 2: ... 2019 Toshiba Electronic Devices Storage Corporation ...
Page 7: ...Revision History Date Revision Comment 2019 02 06 1 First Release ...
Page 8: ......
Page 22: ...xiv ...
Page 52: ...TMPM3V6 M3V4 3 Processor Core 3 6 Exclusive access Page 30 2019 02 06 ...
Page 148: ...TMPM3V6 M3V4 7 Exceptions 7 6 Exception Interrupt Related Registers Page 126 2019 02 06 ...
Page 178: ...TMPM3V6 M3V4 9 Input Output port 9 2 Block Diagrams of Ports Page 156 2019 02 06 ...
Page 354: ...TMPM3V6 M3V4 14 Synchronous Serial Port SSP 14 6 Frame Format Page 332 2019 02 06 ...
Page 419: ...TMPM3V6 M3V4 Page 397 2019 02 06 ...
Page 462: ...TMPM3V6 M3V4 21 Watchdog Timer WDT 21 5 Control register Page 440 2019 02 06 ...
Page 544: ......