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参数资料
| 型号： | MC68331CFC16B1 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 16 MHz, MICROCONTROLLER, PQFP132 |
| 封装： | 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132 |
| 文件页数： | 27/90页 |
| 文件大小： | 481K |
| 代理商： | MC68331CFC16B1 |
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MC68331
MOTOROLA
MC68331TS/D
33
R/W —Read/Write
This field causes a chip select to be asserted only for a read, only for a write, or for both read and write.
Refer to the following table for options available.
STRB —Address Strobe/Data Strobe
0 = Address strobe
1 = Data strobe
This bit controls the timing for assertion of a chip select in asynchronous mode. Selecting address
strobe causes chip select to be asserted synchronized with address strobe. Selecting data strobe caus-
es chip select to be asserted synchronized with data strobe.
DSACK —Data and Size Acknowledge
This field specifies the source of DSACK in asynchronous mode. It also allows the user to adjust bus
timing with internal DSACK generation by controlling the number of wait states that are inserted to op-
timize bus speed in a particular application. The following table shows the DSACK field encoding. The
fast termination encoding (1110) is used for two-cycle access to external memory.
Byte
Description
00
Disable
01
Lower Byte
10
Upper Byte
11
Both Bytes
R/W
Description
00
Reserved
01
Read Only
10
Write Only
11
Read/Write
DSACK
Description
0000
No Wait States
0001
1 Wait State
0010
2 Wait States
0011
3 Wait States
0100
4 Wait States
0101
5 Wait States
0110
6 Wait States
0111
7 Wait States
1000
8 Wait States
1001
9 Wait States
1010
10 Wait States
1011
11 Wait States
1100
12 Wait States
1101
13 Wait States
1110
Fast Termination
1111
External DSACK
相关PDF资料 |
PDF描述 |
|---|---|
| MC68882CRC16A | 32-BIT, MATH COPROCESSOR, CPGA68 |
| MC68HC11E1VFN3 | 8-BIT, 3 MHz, MICROCONTROLLER, PQCC52 |
| MC68HC16Z1CFC25 | 16-BIT, 25.17 MHz, MICROCONTROLLER, PQFP132 |
| MC68HC705X32CFU4 | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HC711P2CFN4 | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQCC84 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC68331CFC20 | 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFC20B1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFC25 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFC25B1 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68331CFV16 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:User’s Manual |
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