S912XEG128J2VAL
| Model | S912XEG128J2VAL |
| Description | IC,MICROCONTROLLER,16-BIT,CPU12 CPU,CMOS,QFP,112PIN,PLASTIC |
| PDF file | Total 1327 pages (File size: 7M) |
| Chip Manufacturer | ROCHESTER |
Chapter 1 Device Overview MC9S12XE-Family
Figure 1-3
shows XGATE local address translation to the global memory map. It indicates also the location
of used internal resources in the memory map.
Table 1-3. XGATE Resources
Internal Resource
XGATE RAM
FLASH
1
Size /KByte
32K
30K
1
$Address
XGRAM_LOW = 0x0F_8000
XGFLASH_HIGH = 0x78_8000
This value is calculated by the following formula: (64K -2K- XGRAMSIZE)
Table 1-4. Derivative Dependent Memory Parameters
Device
9S12XEP100
9S12XEP768
9S12XEQ512
9S12XEx384
9S12XET256
9S12XEA256
6
9S12XEG128
9S12XEA128
6
FLASH_LOW
0x70_0000
0x74_0000
0x78_0000
0x78_0000
5
0x78_0000
7
0x78_0000
8
PPAGE
1
RAM_LOW
0x0F_0000
0x0F_4000
0x0F_8000
0x0F_A000
0x0F_C000
0x0F_D000
RPAGE
2
EE_LOW
0x13_F000
0x13_F000
0x13_F000
0x13_F000
0x13_F000
0x13_F800
EPAGE
4
3
+ 32
4
4 + 32
4 + 32
4 + 32
4 + 32
2 + 32
64
48
32
24
16
8
16
12
8
6
4
3
1
Number of 16K pages addressable via PPAGE register
2
Number of 4K pages addressing the RAM. RAM can also be mapped to 0x4000 - 0x7FFF
3
Number of 1K pages addressing the Cache RAM via the EPAGE register counting downwards from 0xFF
4
Number of 1K pages addressing the Data flash via the EPAGE register starting upwards from 0x00
5
The 384K memory map is split into a 128K block from 0x78_0000 to 0x79_FFFF and a 256K block from
0x7C_0000 to 0x7F_FFFF
6
The 9S12XEA devices are a special bondout for access to extra ADC channels in 80QFP.
Available in 80QFP only. WARNING: NOT PIN-COMPATIBLE WITH REST OF FAMILY.
7
The 256K memory map is split into a 128K block from 0x78_0000 to 0x79_FFFF and a 128K block from
0x7E_0000 to 0x7F_FFFF
8
The 128K memory map is split into a 64K block from 0x78_0000 to 0x78_FFFF and a 64K block from
0x7F_0000 to 0x7F_FFFF
Table 1-5. Derivative Dependent Flash Block Mapping
Device
9S12XEP100
9S12XEP768
9S12XEQ512
9S12XEx384
9S12XET256
9S12XEA256
1
0x70_0000
B3
—
—
—
—
0x74_0000
B2
B2
—
—
—
0x78_0000
B1S
B1S
B1S
B1S
B1S
0x7A_0000
B1N
B1N
B1N
—
—
0x7C_0000
B0
B0
B0
B0
—
0x7E_0000
B0(128K)
MC9S12XE-Family Reference Manual Rev. 1.19
Freescale Semiconductor
37
Because of an order from the United States International Trade Commission, BGA-packaged product lines and part numbers indicated here currently are not
available from Freescale for import or sale in the United States prior to September 2010: S12XE products in 208 MAPBGA packages
