MC9S12DT256 Device User Guide — V03.07
50
1.7 Part ID Assignments
The part ID is located in two 8-bit registers PARTIDH and PARTIDL (addresses $001A and $001B after
reset). The read-only value is a unique part ID for each revision of the chip.
shows the assigned
part ID number.
The device memory sizes are located in two 8-bit registers MEMSIZ0 and MEMSIZ1 (addresses $001C
and $001D after reset).
shows the read-only values of these registers. Refer to section Module
Mapping and Control (MMC) of HCS12 Core User Guide for further details.
$02C0 - $03FF
Reserved space
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
$02C0
- $03FF
Reserved
Read:
0
0
0
0
0
0
0
0
Write:
Table 1-3 Assigned Part ID Numbers
Device
Mask Set Number
Part ID
1
NOTES
:
1. The coding is as follows:
Bit 15-12: Major family identifier
Bit 11-8: Minor family identifier
Bit 7-4: Major mask set revision number including FAB transfers
Bit 3-0: Minor - non full - mask set revision
MC9S12DT256
0L91N
$0030
MC9S12DT256
1L91N
$0031
MC9S12DT256
3L91N
$0032
MC9S12DT256
4L91N
$0034
MC9S12DT256
0L01Y
$0033
Table 1-4 Memory size registers
Register name
Value
MEMSIZ0
$25
MEMSIZ1
$81
Summary of Contents for MC9S12A256
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