Cypress Traveo S6J32E Series, Manual

Page: 80 / 167

Document Number: 002-10689 Rev *H Page 80 of 166
S6J32E, S6J32F, S6J32G Series
Notes:
−
*1: Maximum clock frequencies when CPU clock = 240 MHz.
−
For SSCG, down spread and center spread modes are supported with following conditions:
➢
For down spread mode, clock frequency setting can be up to max SSCG frequency defined in above table.
➢
For center spread mode, an appropriate clock frequency setting has to be chosen so that the modulated clock does not
exceed the max SSCG frequency defined in above table.
−
240 MHz or less is available for PLL.
−
*2: Maximum clock frequencies when CPU clock = 200 MHz.
−
*3: Maximum clock frequencies when CPU clock = 160 MHz. This is also a combination of maximum clock frequencies for TC
FLASH Programming or Erasing.
−
Even if a combination of clock frequency is able to be configured by software, the frequency should be configured under
maximum frequency described in
Table 8-1 . For example, 80 MHz of CLK_LCP0A seems to be configurable from both divided
240 MHz and 160 MHz of CLK_CPU. But each duty ratio of configured 80 MHz as an internal signal is different from one
another. In this series, the 80 MHz from the 160 MHz divided by 2 can only be assured, but the 240 MHz divided by 3 cannot
be assured from the internal timing design point of view.
−
F
CLK_TRC
/2 (half frequency of F
CLK_TRC
) comes out of the trace clock port of package external pin.
−
The frequency described in () is maximum output frequency of SSCG PLL / PLL multiplier circuit.
−
The configurable minimum frequency of PLLn and SSCGn output is 400 MHz.
−
"Unused" means a clock source which does not have any supply destinations. Configure it as disable with performing at the
lower clock frequency than the described maximum.
−
Operation assurance range
Relationship between the internal clock frequency and supply voltage
Note: CPU will be reset, when the power supply voltage is equal to or less than LVD setting voltage.
5.5
4.5
3.5
2 4 Maximum frequency
of each clock
Frequency [MHz]
Power supply V
CC
5 [V]
1.3
1.2
1.1
2 4 Maximum frequency
of each clock
Frequency [MHz]
Power supply VCC12 [V]
Recommended
guaranteed
operation
range
Guaranteed
operation range
PLL guaranteed
operation range