|
MC9S08AC16_08 Datasheet, PDF (76/344 Pages) Freescale Semiconductor, Inc – 8-Bit HCS08 Central Processor Unit (CPU) | |||
|
◁ |
Chapter 5 Resets, Interrupts, and System Conï¬guration
5.9.6 System Device Identiï¬cation 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 speciï¬c 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
â
â
â
â
0
0
0
0
= Unimplemented or Reserved
Figure 5-7. System Device Identiï¬cation Register â 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 Identiï¬cation Number â Each derivative in the HCS08 Family has a unique identiï¬cation number. The
ID[11:8] MC9S08AC16 Series is hard coded to the value 0x012. 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
0
0
1
0
= Unimplemented or Reserved
Figure 5-8. System Device Identiï¬cation Register â Low (SDIDL)
Table 5-9. SDIDL Register Field Descriptions
Description
Part Identiï¬cation Number â Each derivative in the HCS08 Family has a unique identiï¬cation number. The
MC9S08AC16 Series is hard coded to the value 0x012. See also ID bits in Table 5-8.
MC9S08AC16 Series Data Sheet, Rev. 6
76
Freescale Semiconductor
|
▷ |