- 您現在的位置：買賣IC網 > PDF目錄371050 > MC68HC11K0VFN3 (MOTOROLA INC) 8-BIT MICROCONTROLLER PDF資料下載
參數資料
| 型號： | MC68HC11K0VFN3 |
| 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, 3 MHz, MICROCONTROLLER, PQCC84 |
| 封裝： | PLASTIC, LCC-84 |
| 文件頁數： | 18/80頁 |
| 文件大小： | 420K |
| 代理商： | MC68HC11K0VFN3 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁當前第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁
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PDF資料 |
PDF描述 |
|---|---|
| MC68HC11K0VFN4 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU2 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU3 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFU4 | 8-BIT MICROCONTROLLER |
| MC68L11K0FN1 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| MC68HC11K0VFU4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:8-Bit Microcontroller |
| MC68HC11K1 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit |
發布緊急采購，3分鐘左右您將得到回復。