參數(shù)資料
型號(hào)： MC68HC11K0MFN4
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQCC84
封裝： PLASTIC, LCC-84
文件頁(yè)數(shù)： 18/80頁(yè)
文件大?。?/td> 420K
代理商： MC68HC11K0MFN4
MOTOROLA
18
M68HC11 K Series
MC6HC11KTS/D
4-Kbyte boundary after reset, 128 bytes of the RAM are located at $0300 to $037F. Remapping is ac-
complished by writing appropriate values to the INIT register. Refer to the register and RAM mapping
examples following the memory map diagram.
When power is removed from the MCU, RAM contents may be preserved using the MODB/V
STBY
pin.
A power source (2.0 Vdc –V
DD
) applied to this pin protects all 768 bytes of RAM.
Can be written only once in first 64 cycles out of reset in normal modes or at any time in special mode.
RAM[3:0] —Internal RAM Map Position
These bits determine the upper four bits of the RAM address. At reset RAM is mapped to $0000. Nor-
mally the RAM would be mapped at $0000–$02FF (768 bytes). However, the register block overlaps
the first 128 bytes of RAM, causing them to be remapped to $0300–$037F. Refer to
Figure 4
and
Fig-
ure 5
.
REG[3:0] —128-Byte Register Block Map Position
These bits determine the upper four bits of the register block starting address. At reset registers are
mapped to $0000 and overlap the first 128 bytes of RAM, causing them to be remapped to $0300–
$037F. Refer to
Figure 4
and
Figure 5
.
3.3 ROM/EPROM
Standard devices have 24 kbytes of EPROM (OTPROM in a non-windowed package). Custom ROM
devices have a 24-Kbyte ROM array that is mask programmed at the factory to customer specifications.
The MC68HC11K0, MC68HC11K1, MC68L11K0, and MC68L11K1 have no ROM/EPROM. Refer to
the
ordering information tables
.
The ROMAD and ROMON control bits in the CONFIG register control the position and presence of
ROM/EPROM in the memory map. The ROM/EPROM can be mapped at $2000–$7FFF or $A000–
$FFFF. If it is mapped to $A000–$FFFF, vector space is included. In single-chip mode the ROM/
EPROM is forced to $A000–$FFFF (ROMAD = 1) and enabled (ROMON = 1), regardless of the value
in the CONFIG register. This ensures that there will be ROM/EPROM at the vector space. In special
test mode, the ROMON bit is forced to zero so that the ROM/EPROM is removed from the memory map.
Refer to
Figure 4
.
Programming EPROM requires an external 12.25 volt nominal power supply (V
PPE
) that must be ap-
plied to the XIRQ/V
PPE
pin. Three methods are used to program and verify EPROM/OTPROM.
Normal EPROM/OTPROM programming can be accomplished in any operating mode. Normal pro-
gramming is accomplished using the EPROM/OTPROM programming register (EPROG). The EPROG
register enables the EPROM programming voltage, controls the latching of data to be programmed, and
selects single- or multiple-byte programming.
To program the EPROM, complete the following steps using the EPROG register:
1.
Set the ELAT bit in EPROG register. EELAT bit in PPROG must be cleared as it negates the
function of the ELAT bit.
Write data to the desired address.
Turn on programming voltage to the EPROM array by setting the EPGM bit in EPROG register.
Delay for 2 ms or more, as appropriate.
Clear the EPGM bit in EPROG to turn off the programming voltage.
2.
3.
4.
5.
INIT
—
RAM and Register Mapping
$003D
Bit 7
6
5
4
3
2
1
Bit 0
RAM3
RAM2
RAM1
RAM0
REG3
REG2
REG1
REG0
RESET:
0
0
0
0
0
0
0
0
相關(guān)PDF資料
PDF描述
MC68HC11K0VFN2 8-BIT MICROCONTROLLER
MC68HC11K0VFN3 8-BIT MICROCONTROLLER
MC68HC11K0VFN4 8-BIT MICROCONTROLLER
MC68HC11K0VFU2 8-BIT MICROCONTROLLER
MC68HC11K0VFU3 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC11K0VFN2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
MC68HC11K0VFN3 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11K0VFN4 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
MC68HC11K0VFU2 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
MC68HC11K0VFU3 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*