CID4=A, FPU_OPTION=NONE, FLASH_OPTION=FLASH_OPTION_256K, CID3=QN9020, MEM_OPTION=MEM_OPTION_64K, USB_OPTION=NONE, ADC_OPTION=LOW, FSP_OPTION=NONE
chip id register
| CID0 | CHIP ID for manufacture fab |
| CID1 | CHIP ID for product family |
| CID2 | CHIP ID for minor revision |
| CID3 | CHIP ID for product ID 0 (QN9020): QN9020 1 (QN9030): QN9030 2 (QN9080): QN9080 |
| CID4 | CHIP ID for major revision 0 (A): revision A 1 (B): revision B 2 ©: revision C 3 (D): revision D |
| MEM_OPTION | memory bond indicator 0 (MEM_OPTION_64K): chip memory size is 64K 1 (MEM_OPTION_128K): chip memory size is 128K |
| ADC_OPTION | adc bond indicator 0 (LOW): adc low resolution 1 (HIGH): adc high resolution |
| FLASH_OPTION | flash bond indicator 0 (FLASH_OPTION_256K): chip flash size is 256K 1 (FLASH_OPTION_512K): chip flash size is 512K |
| FPU_OPTION | fpu bond indicator 0 (NONE): fpu is not exist 1 (EXIST): fpu is exist |
| USB_OPTION | usb bond indicator 0 (NONE): chip doesnot have USB 1 (EXIST): chip has USB |
| FSP_OPTION | fsp bond indicator 0 (NONE): chip doesnot have FSP 1 (EXIST): chip has FSP |