MC9S08QE16CLC Datasheet, PDF (79/350 Pages) Freescale Semiconductor, Inc – Low-power wireless applications, Gas, water and heater meters

Chapter 5 Resets, Interrupts, and System Configuration
5.9.6 System Device Identification Register (SDIDH, SDIDL)
This read-only register is included so host development systems can identify the HCS08 derivative and
revision number. This allows the development software to recognize where specific memory blocks,
registers, and control bits are located in a target MCU.
7
6
5
4
3
2
1
0
R
ID11
ID10
ID9
ID8
W
Reset
—
—
—
—
0
0
0
0
= Unimplemented or Reserved
Figure 5-7. System Device Identification Register — High (SDIDH)
Table 5-8. SDIDH Register Field Descriptions
Field
Description
7:4
Bits 7:4 are reserved. Reading these bits will result in an indeterminate value; writes have no effect.
Reserved
3:0
Part Identification Number — Each derivative in the HCS08 Family has a unique identification number. The
ID[11:8] MC9S08AC60 Series is hard coded to the value 0x001D. See also ID bits in Table 5-9.
R
W
Reset
Field
7:0
ID[7:0]
7
6
5
4
3
2
1
0
ID7
ID6
ID5
ID4
ID3
ID2
ID1
ID0
0
0
0
1
1
1
0
1
= Unimplemented or Reserved
Figure 5-8. System Device Identification Register — Low (SDIDL)
Table 5-9. SDIDL Register Field Descriptions
Description
Part Identification Number — Each derivative in the HCS08 Family has a unique identification number. The
MC9S08AC60 Series is hard coded to the value 0x001D. See also ID bits in Table 5-8.
MC9S08AC60 Series Data Sheet, Rev. 3
Freescale Semiconductor
79