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| 型号： | M68HC11K |
| 厂商： | Motorola, Inc. |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8位微控制器 |
| 文件页数： | 30/80页 |
| 文件大小： | 420K |
| 代理商： | M68HC11K |
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MOTOROLA
30
M68HC11 K Series
MC68HC11KTS/D
Bit 7 — Not implemented
Always reads zero
MM1CR — Memory Mapping Window 1 Control Register
When a 64 Kbyte CPU address falls within window 1, the value in MM1CR is driven out from the corre-
sponding expansion address lines to enable the specified bank in the window.
MM2CR — Memory Mapping Window 2 Control Register
When a 64 Kbyte CPU address falls within window 2, the value in MM2CR is driven out from the corre-
sponding expansion address lines to enable the specified bank in the window.
Bit 0 — Not implemented
Always reads zero
4.2 Overlap Guidelines
On-chip registers, RAM, and EEPROM are higher priority than expansion windows. If a window
overlaps RAM, registers, or EEPROM, they appear in all banks at their CPU address.
If a window overlaps on-chip ROM/EPROM, the ROM/EPROM appears only in banks with
XA[18:16] = 0:0:0.
Window 1 is higher priority than window 2, therefore any overlapped portion of window 2 is inac-
cessible.
4.3 Chip Selects
M68HC11 K-series MCUs have four software configured chip selects that are enabled in expanded
modes. The chip select for I/O (CSIO) is used for I/O expansion. The program chip select (CSPROG)
is used with an external memory that contains the reset vectors and program. The two general-purpose
chip selects, CSGP1 and CSGP2, are used to enable external devices. These external devices can be
in the 64 Kbyte memory space or in the expanded memory space. Chip select signals are a shared func-
tion of port H. When an MCU pin is not used for chip select functions it can be used for general-purpose
I/O. The following table contains a summary of the attributes of each chip select that can be controlled
by user software.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M68HC11K_1 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:8-Bit Microcontroller |
| M68HC11K_13 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:M68HC11K Family Technical Data |
| M68HC11K0 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
| M68HC11K1 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
| M68HC11K2 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:CONFIG Register Programming for EEPROM-based M68HC11 Microcontrollers |
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