- 您現在的位置：買賣IC網 > PDF目錄371050 > MC68HC11K0MFN2 (MOTOROLA INC) 8-BIT MICROCONTROLLER PDF資料下載
參數資料
| 型號： | MC68HC11K0MFN2 |
| 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, 2 MHz, MICROCONTROLLER, PQCC84 |
| 封裝： | PLASTIC, LCC-84 |
| 文件頁數： | 35/80頁 |
| 文件大小： | 420K |
| 代理商： | MC68HC11K0MFN2 |
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頁當前第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
M68HC11 K Series
MC68HC11KTS/D
MOTOROLA
35
Bit 7 — Not implemented
Always reads zero
G2DPC — General-Purpose Chip Select 2 Drives Program Chip Select
0 = CSGP2 does not affect CSPROG
1 = CSGP2 and CSPROG are connected to an OR gate and driven out CSPROG
G2POL — General-Purpose Chip Select 2 Polarity Select
0 = CSGP2 active low
1 = CSGP2 active high
G2AV — General-Purpose Chip Select 2 Address Valid Select
0 = Active during E high time
1 = Active during address valid time
G2SZA–G2SZD — General-Purpose Chip Select 2 Size
4.3.6 Examples of Memory Expansion Using Chip Selects
On the following two pages are examples of memory expansion schemes that use chip select signals
to simplify the interface to the external memory devices. Although schematics are not provided, careful
study of the memory map diagram for each example will reveal the simplicity with which an expanded
system can be created. Both examples require a minimum of external circuitry as well as very little pro-
gram code.
This example is a system consisting of the MCU and a single 27C512-type memory device. This system
uses one chip select and has one window containing eight banks of eight Kbytes each. In this example,
a total of 64 Kbytes is added to the address range of the MCU. Three of the expansion address lines
(XA[15:13]) are used. Register values particular to this example are given below the diagram.
G2SZx
Valid Bits
(MXGS2 = 0)
None
ADDR[15:11]
ADDR[15:12]
ADDR[15:13]
ADDR[15:14]
ADDR15
None
None
None
None
None
None
None
Valid Bits
(MXGS2 = 1)
None
G2A[18:11]
G2A[18:12]
G2A[18:13]
G2A[18:14]
G2A[18:15]
G2A[18:16]
G2A[18:17]
G2A18
None
None
None
None
A
0
0
0
0
0
0
0
0
1
1
1
1
B
0
0
0
0
1
1
1
1
0
0
0
0
C
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
Size (Bytes)
Disabled
2 K
4 K
8 K
16 K
32 K
64 K
128 K
256 K
512 K
Follow Window 1
Follow Window 2
Default to 512 K
1100–1111
相關PDF資料 |
PDF描述 |
|---|---|
| MC68HC11K0MFN3 | 8-BIT MICROCONTROLLER |
| MC68HC11K0MFN4 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFN2 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFN3 | 8-BIT MICROCONTROLLER |
| MC68HC11K0VFN4 | 8-BIT MICROCONTROLLER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MC68HC11K0MFN3 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller |
| MC68HC11K0MFN4 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller |
| 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 |
發布緊急采購，3分鐘左右您將得到回復。