MC9S08SH32CWL Datasheet, PDF (71/328 Pages) Freescale Semiconductor, Inc – MC9S08SH32 Series Features

Chapter 5 Resets, Interrupts, and General System Control
5.7.6 System Device Identification Register (SDIDH, SDIDL)
These high page read-only registers are 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
0
ID11
ID10
ID9
ID8
W
Reset:
0¹
—
—
—
0
0
0
0
= Unimplemented or Reserved
1 _{- Bit 7 is a mask option tie off that is used internally to determine that the device is a MC9S08SH32 Series.}
Figure 5-7. System Device Identification Register — High (SDIDH)
Table 5-8. SDIDH Register Field Descriptions
Field
Description
7
Bit 7 will read as a 0 for the MC9S08SH32 Series devices; writes have no effect.
6:4
Bits 6:4 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] MC9S08SH32 is hard coded to the value 0x01A. 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
0
1
0
= 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
MC9S08SH32 is hard coded to the value 0x01A. See also ID bits in Table 5-8.
MC9S08SH32 Series Data Sheet, Rev. 2
Freescale Semiconductor
71
PRELIMINARY