参数资料
型号: MC56F8145VFG
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 数字信号处理
英文描述: 4-BIT, 120 MHz, OTHER DSP, PQFP128
封装: PLASTIC, LQFP-128
文件页数: 106/172页
文件大小: 871K
代理商: MC56F8145VFG
Program Map
56F8345 Technical Data, Rev. 17
Freescale Semiconductor
39
Preliminary
RAM and Flash memories are used in both spaces.
This section provides memory maps for:
Program Address Space, including the Interrupt Vector Table
Data Address Space, including the EOnCE Memory and Peripheral Memory Maps
On-chip memory sizes for each device are summarized in Table 4-1. Flash memories’ restrictions are
identified in the “Use Restrictions” column of Table 4-1.
Note: Data Flash and Program RAM are NOT available on the 56F8145 device.
4.2 Program Map
The Program memory map is located in Table 4-4. The operating mode control bits (MA and MB) in the
Operating Mode Register (OMR) control the Program memory map. At reset, these bits are set as indicated
EXT_BOOT = EMI_MODE = 0 and cannot be changed in the 56F8345 or 56F8145.
Note: Program RAM is NOT available on the 56F8145 device.
Table 4-1 Chip Memory Configurations
On-Chip Memory
56F8345
56F8145
Use Restrictions
Program Flash
128KB
Erase / Program via Flash interface unit and word writes to
CDBW
Data Flash
8KB
Erase / Program via Flash interface unit and word writes to
CDBW. Data Flash can be read via either CDBR or XDB2,
but not by both simultaneously
Program RAM
4KB
None
Data RAM
8KB
None
Program Boot Flash
8KB
Erase / Program via Flash Interface unit and word writes to
CDBW
Table 4-2 OMR MB/MA Value at Reset1
OMR MB =
Flash Secured
State2,3
OMR MA =
EXTBOOT Pin
Chip Operating Mode
0
Mode 0 – Internal Boot; EMI is configured to use 16 address lines; Flash
Memory is secured; external P-space is not allowed; the EOnCE is disabled
0
1
Not valid; cannot boot externally if the Flash is secured and will actually
configure to 00 state
1
0
Mode 0 – Internal Boot; EMI is configured to use 16 address lines
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