MC9S12HZ256_08 Datasheet, PDF (30/692 Pages) Freescale Semiconductor, Inc – Microcontrollers

Chapter 1 MC9S12HZ256 Device Overview
1.3 Part ID Assignments and Mask Set Numbers
The part ID is located in two 8-bit registers PARTIDH and PARTIDL at addresses 0x001A and 0X001B,
respectively. The rado-only value is a unique part ID for each revision of the chip. Table 1-6 shows the
assigned part ID and Mask Set numbers.
Table 1-6. Assigned Part ID and Mask Set Numbers
Part Names
Mask Set
1
Part ID
MC9S12HZ256
MC9S12HZ128
MC9S12HZ64
MC9S12HN64
MC3S12HZ256
MC3S12HZ128
2L16Y/3L16Y
0x1402/0x1403
MC3S12HZ64
1M36C
0x1501
MC3S12HN64
MC3S12HZ32
MC3S12HN32
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 including fab transfers
Bit 3-0: Minor non-full mask set revision
The device memory sizes are located in two 8-bit registers MEMSIZ0 and MEMZI1 (addresses 0x001C
and 0x001D after reset). Table 1-7 shows the read-only values of these registers. Refer to the HCS12 MMC
block description chapter for further details.
Table 1-7. Memory Size Registers
Part Names
MC9S12HZ256
MC9S12HZ128
MC9S12HZ64
MC9S12HN64
MC3S12HZ256
MC3S12HZ128
MC3S12HZ64
MC3S12HN64
MC3S12HZ32
MC3S12HN32
MEMSIZ0
0x15
MEMSIZ1
0x81
0x01
0x80
MC9S12HZ256 Data Sheet, Rev. 2.05
30
Freescale Semiconductor