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參數資料

型號：	MC68HC11K4VFN3
廠商：	MOTOROLA INC
元件分類：	微控制器/微處理器
英文描述：	Technical Summary 8-Bit Microcontroller
中文描述：	8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC84
封裝：	PLASTIC, LCC-84
文件頁數：	30/80頁
文件大小：	420K
代理商：	MC68HC11K4VFN3

MOTOROLA

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.

相關代理商/技術參數	參數描述
MC68HC11K4VFN4	制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11K4VFS2	制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC11K4VFS3	制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC11K4VFS4	制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT
MC68HC11K4VFU2	制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS MICROCONTROLLER UNIT

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