FLC Flash Memory Control. FLSH_ 0x40029000 0x00 0x1000 registers Flash_Controller Flash Controller interrupt. 23 FLSH_ADDR Flash Write Address. 0x00 ADDR Address for next operation. 0 32 FLSH_CLKDIV Flash Clock Divide. The clock (PLL0) is divided by this value to generate a 1 MHz clock for Flash controller. 0x04 0x00000064 CLKDIV Flash Clock Divide. The clock is divided by this value to generate a 1MHz clock for flash controller. 0 8 FLSH_CN Flash Control Register. 0x08 WR Write. This bit is automatically cleared after the operation. 0 1 complete No operation/complete. 0 start Start operation. 1 ME Mass Erase. This bit is automatically cleared after the operation. 1 1 PGE Page Erase. This bit is automatically cleared after the operation. 2 1 ERASE_CODE Erase Code. The ERASE_CODE must be set up property before erase operation can be initiated. These bits are automatically cleared after the operation is complete. 8 8 nop No operation. 0 erasePage Enable Page Erase. 0x55 eraseAll Enable Mass Erase. The debug port must be enabled. 0xAA PEND Flash Pending. When Flash operation is in progress (busy), Flash reads and writes will fail. When PEND is set, write to all Flash registers, with exception of the Flash interrupt register, are ignored. 24 1 read-only idle Idle. 0 busy Busy. 1 UNLOCK Flash Unlock. The correct unlock code must be written to these four bits before any Flash write or erase operation is allowed. 28 4 unlocked Flash Unlocked. 2 locked Flash Locked. 3 FLSH_INT Flash Interrupt Register. 0x24 DONE Flash Done Interrupt. This bit is set to 1 upon Flash write or erase completion. 0 1 inactive No interrupt is pending. 0 pending An interrupt is pending. 1 AF Flash Access Fail. This bit is set when an attempt is made to write the flash while the flash is busy or the flash is locked. This bit can only be set to 1 by hardware. 1 1 noError No Failure. 0 error Failure occurs. 1 DONEIE Flash Done Interrupt Enable. 8 1 disable Disable. 0 enable Enable. 1 AFIE 9 1 4 4 FLSH_DATA[%s] Flash Write Data. 0x30 DATA Data next operation. 0 32 ACNTL Access Control Register. Writing the ACTRL register with the following values in the order shown, allows read and write access to the system and user Information block: pflc-actrl = 0x3a7f5ca3; pflc-actrl = 0xa1e34f20; pflc-actrl = 0x9608b2c1. When unlocked, a write of any word will disable access to system and user information block. Readback of this register is always zero. 0x40 write-only ADATA Access control. 0 32