Fujitsu MB90M405, Руководство по оборудованию

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MB90M405 F
2
MC-16LX FAMILY HARDWARE MANUAL
1-16
1.10
This section provides an overview of the low power consumption mode.
The onolith (MB90M405) has the following modes that stop various functions and clocks
Chapter 4.
• Relationships between operating modes and power
Operating mode Main clock PLL Clock CPU Resources Timer clock
PLL Run Operates Operates Operates Operates Operates
Main Run Operates Stops Operates Operates Operates
PLL Sleep Operates Operates Stops Operates* Operates
Main sleep Operates Stops Stops Operates* Operates
Pseudo-time Operates Stops Stops Stops Operates
Stop Stops Stops Stops Stops Stops
In the above table, the power consumption decreases as the operating mode goes down from the top of the
table.
In the PLL Run mode, operation is performed on the PCLK generated by multiplying the original oscillation by
1 to 4. In the Main Run mode, operation is performed on the MCLK generated by dividing the original
oscillation by 2.
*: In the sleep mode, the CPU stops, so resources cannot be accessed from the CPU.