Technical information

SH7285 Group

Example of Initialization

REJ06B0860-0100/Rev.1.00 June 2009 Page 4 of 21

Start Start

End

PowerON_Reset_PC function HardwareSetup function

End

Configure the hardware

(HardwareSetup function)

Initialize sections B and R

(_INITSCT function)

Set the Vector base register (VBR)

Set the Status register (SR)

Call the main function

Execute the sleep instruction

Set the CPG

(io_set_cpg function)

Permit interrupts

Set the register bank

Start

End

Set the Frequency control register

(FRQCR)

Clear the module standby function

(STBCR3 to STBCR6)

io_set_cpg function

Set the MTU2S clock frequency control

Set the AD clock frequency control register

(ACLKCR)

Figure 1 Flow Charts of Functions (PowerON_Reset_PC, HardwareSetup, io_set_cpg)