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Device Overview MC9S12G-Family
Address
0x03C8–0x03CF
0x03D0–0x03FF
Module
DAC1 (Digital to Analog Converter) 8
Reserved
Size
(Bytes)
8
48
1
2
3
4
5
6
7
8
The SCI1 is not available on the S12GN8, S12GN16, S12GN32, and S12GN32 devices
The SCI2 is not available on the S12GN8, S12GN16, S12GN32, S12GN32, S12G48,
and S12G64 devices
The SPI1 is not available on the S12GN8, S12GN16, S12GN24, and S12GN32 devices
The SPI2 is not available on the S12GN8, S12GN16, S12GN32, S12GN32, S12G48,
and S12G64 devices
The CAN is not available on the S12GN8, S12GN16, S12GN24, S12GN32, and
S12GN48 devices
The ACMP is only available on the S12GN8, S12GN16, S12GN24, S12GN32,
S12GN48,S12GN48, S12G48, and S12G64 devices
The RVA is only available on the S12GA192 and S12GA240 devices
DAC0 and DAC1 are only available on the S12GA192 and S12GA240 devices
NOTE
Reserved register space shown in Table 1-3 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 shows S12G CPU and BDM local address translation to the global memory map as a graphical
representation. In conjunction Table 1-4 shows the address ranges and mapping to 256K global memory
space for P-Flash, EEPROM and RAM. 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 1-4. MC9S12G-Family Memory Parameters
Feature
S12GN16
S12GN32
S12G48
S12GN48
S12G64
S12G96
S12G128
S12G192 S12G240
S12GA192 S12GA240
P-Flash size
PF_LOW
PF_LOW_UNP
16KB
0x3C000
0xC000
32KB
0x38000
0x8000
48KB
0x34000
0x4000
64KB
0x30000
—
96KB
0x28000
—
128KB
0x20000
—
192KB
0x10000
—
240KB
0x04000
—
(unpaged) 1
PPAGES
0x0F
0x0E -
0x0F
0x0D -
0x0F
0x0C -
0x0F
0x0A -
0x0F
0x08 -
0x0F
0x04 -
0x0F
0x01 -
0x0F
EEPROM
512
1024
1536
2048
3072
4096
4096
4096
[Bytes]
EEPROM_HI
0x05FF
0x07FF
0x09FF
0x0BFF
0x0FFF
0x13FF
0x13FF
0x13FF
MC9S12G Family Reference Manual, Rev.1.23
Freescale Semiconductor
51
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