參數(shù)資料
型號： MC56F8357MPY60
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： PLASTIC, LQFP-160
文件頁數(shù)： 113/176頁
文件大小： 2230K
代理商： MC56F8357MPY60
Program Map
56F8357 Technical Data, Rev. 9.0
Freescale Semiconductor
41
Preliminary
4.2 Program Map
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 in Table 4-2. Table 4-4 shows the memory
map configurations that are possible at reset. After reset, the OMR MA bit can be changed and will have
an effect on the P-space memory map, as shown in Table 4-3. Changing the OMR MB bit will have no
effect
The device’s external memory interface (EMI) can operate much like the 56F80x family’s EMI, or it can
be operated in a mode similar to that used on other products in the 56800E family. Initially, CS0 and CS1
are configured as PS and DS, in a mode compatible with earlier 56800 devices.
Eighteen address lines are required to shadow the first 192K of internal program space when booting
externally for development purposes. Therefore, the entire complement of on-chip memory cannot be
accessed using a 16-bit 56800-compatible address bus. To address this situation, the EMI_MODE pin can
be used to configure four GPIO pins as Address[19:16] upon reset (Software reconfiguration of the highest
address lines [A20-23] is required if the full address range is to be used.)
The EMI_MODE pin also affects the reset vector address, as provided in Table 4-4. Additional pins must
be configured as address or chip select signals to access addresses at P:$10 0000 and above.
Note: Program RAM is NOT available on the 56F8157 device.
Table 4-2 OMR MB/MA Value at Reset
OMR MB =
Flash Secured
State1, 2
1. This bit is only configured at reset. If the Flash secured state changes, this will not be reflected in MB until the next reset.
2. Changing MB in software will not affect Flash memory security.
OMR MA =
EXTBOOT Pin
Chip Operating Mode
00
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
01
Not valid; cannot boot externally if the Flash is secured and will actually
configure to 00 state
10
Mode 0 – Internal Boot; EMI is configured to use 16 address lines
11
Mode 1 – External Boot; Flash Memory is not secured; EMI configuration is
determined by the state of the EMI_MODE pin
Table 4-3 Changing OMR MA Value During Normal Operation
OMR MA
Chip Operating Mode
0
Use internal P-space memory map configuration
1
Use external P-space memory map configuration – If MB = 0 at reset, changing this bit has no
effect.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8357MPYE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8357VPY60 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16-bit Digital Signal Processor
MC56F8357VPYE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8357VVF 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
MC56F8357VVFE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
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