Datasheet

Chapter 5 Resets, Interrupts, and System Configuration
MC9S08AW60 Data Sheet, Rev 2
Freescale Semiconductor 77
5.9.6 System Device Identification Register (SDIDH, SDIDL)
This read-only register is included so host development systems can identify the HCS08 derivative. This
allows the development software to recognize where specific memory blocks, registers, and control bits
are located in a target MCU.
Figure 5-7. System Device Identification Register — High (SDIDH)
76543210
R ID11 ID10 ID9 ID8
W
Reset
————
0000
= Unimplemented or Reserved
Table 5-7. SDIDH Register Field Descriptions
Field Description
7:4
Reserved
Bits 7:4 are reserved. Reading these bits will result in an indeterminate value; writes have no effect.
3:0
ID[11:8]
Part Identification Number — Each derivative in the HCS08 family has a unique identification number. The
MC9S08AW60 Series is hard coded to the value $008. See also ID bits in Table 5-8.
76543210
R ID7 ID6 ID5 ID4 ID3 ID2 ID1 ID0
W
Reset 00001000
= Unimplemented or Reserved
Figure 5-8. System Device Identification Register — Low (SDIDL)
Table 5-8. SDIDL Register Field Descriptions
Field Description
7:0
ID[7:0]
Part Identification Number — Each derivative in the HCS08 family has a unique identification number. The
MC9S08AW60 Series is hard coded to the value $008. See also ID bits in Table 5-7.