RX610 Group
7. Clock Generation Circuit
R01UH0032EJ0120 Rev.1.20
Page 163 of 1006
Feb 20, 2013
Notes: 1.
Do not set a frequency higher than the system clock (ICLK). If such a frequency is set, the clock frequency
will be the same as the ICLK.
2. Do not set a frequency lower than the peripheral module clock (PCLK) and external bus clock (BCLK). If
such a frequency is set, the frequency of the PCLK and BCLK will change to the system clock (ICLK)
frequency.
The SCKCR register is used to control the BCLK output and select the frequencies of the system clock (ICLK), peripheral
module clock (PCLK), and external bus clock (BCLK).
PCK[3:0] Bits (Peripheral Module Clock (PCLK) Select)
These bits select the PCLK frequency.
The value of these bits indicates a multiplication factor of the input clock (EXTAL).
BCK[3:0] Bits (External Bus Clock (BCLK) Select)
These bits select the BCLK frequency.
The value of these bits indicates a multiplication factor of the input clock (EXTAL).
PSTOP1 Bit (BCLK Output Stop)
This bit controls the BCLK output from P53.
ICK[3:0] Bits (System Clock (ICLK) Select)
These bits select the frequency of the CPU, DMAC, DTC, and system clock (ICLK).
The value of these bits indicates a multiplication factor of the input clock (EXTAL).
Summary of Contents for RX600 Series
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