MC9S12HY64 Datasheet, PDF (21/792 Pages) Freescale Semiconductor, Inc – S12 Microcontrollers

Device Overview MC9S12HY/HA-Family
Table 1-2. Device Register Memory Map (Sheet 2 of 2)
Address
0x0300–0x03FF Reserved
Module
Size
(Bytes)
256
NOTE
Reserved register space shown in Table 1-2 is not allocated to any module.
This register space is reserved for future use. Writing to these locations has
no effect. Read access to these locations returns zero.
Figure 1-2, Figure 1-3 and Figure 1-4 shows S12HY/HA family CPU and BDM local address translation
to the global memory map. It indicates also the location of the internal resources in the memory map.
Table 1-3 shows the mapping of D-Flash and unpaged P-Flash memory. The whole 256K global memory
space is visible through the P-Flash window located in the 64K local memory map located at 0x8000 −
0xBFFF using the PPAGE register.
Table 1-3. MC9S12HY/MC9S12HA -Family mapping for D-Flash and unpaged P-Flash
Local 64K memory map
Global 256K memory map
D-Flash
0x0400 - 0x13FF
0x1400 - 0x2FFF⁽¹⁾
0x0_4400 - 0x0_53FF
0x3_1400 -0x3_2FFF⁽²⁾
P-Flash
0x4000 - 0x7FFF
0x3_4000 - 0x3_7FFF
0xC000 - 0xFFFF
0x3_C000 - 0x3_FFFF
1. 0x2FFF for MC9S12HY64 because of 4K RAM size
2. 0x3_2FFF for MC9S12HY64 because of 4K RAM size
Table 1-4. MC9S12HY/MC9S12HA Derivatives
Feature
MC9S12HY32
MC9S12HA32
MC9S12HY48
MC9S12HA48
MC9S12HY64
MC9S12HA64
P-Flash size
PF_LOW
PPAGES
RAMSIZE
RAM_LOW
32KB
0x3_8000
0x0E - 0x0F
2KB
0x0_3800
48KB
0x3_4000
0x0D - 0x0F
4KB
0x0_3000
64KB
0x3_0000
0x0C - 0x0F
4KB
0x0_3000
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Freescale Semiconductor
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