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参数资料
| 型号： | MC68030CRC33C |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 33 MHz, MICROPROCESSOR, CPGA128 |
| 封装： | PGA-128 |
| 文件页数： | 4/48页 |
| 文件大小： | 332K |
| 代理商： | MC68030CRC33C |
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MC68EC030 TECHNICAL DATA
MOTOROLA
The MC68EC030 instruction cache is a 256-byte direct-mapped cache organized as 16 lines consisting
of four long words per line. Each long word is independently accessible, yielding 64 possible entries, with
address bit A1 selecting the correct word during an access. Thus, each line has a tag field composed of
the upper 24 address bits, the FC2 (supervisor/user) value, four valid bits (one for each long-word entry),
and the four long-word entries (see Figure 6). The instruction cache is automatically filled by the
MC68EC030 whenever a cache miss occurs; using the burst transfer capability, up to four long words can
be filled in one burst operation. The caches cannot be manipulated directly by the programmer except by
the use of the CACR, which provides cache clearing and cache entry clearing facilities. The caches can
also be enabled/disabled by this register. Finally, the system hardware can disable the on-chip caches at
any time by asserting the
CDIS signal.
F F F
CC C 3
2 2 2 2 1 1 111111110000000000
21 0 1
3 20
1
9 8 7 65432109876543210
COMPARATOR
TAG
1 OF 16
SELECT
VALID
TAG REPLACE
INDEX
TAG
LINE HIT
DATA FROM INSTRUCTION
CACHE DATA BUS
CACHE CONTROL LOGIC
V
ACCESS ADDRESS
DATA TO INSTRUCTION
CACHE HOLDING REGISTER
ENTRY HIT
A
LONG WORD
SELECT
CACHE SIZE = 64 (LONG WORDS)
LINE SIZE = 4 (LONG WORDS)
SET SIZE = 1
AA AAAAAAAAAAAAAAAAAAAAAA
Figure 6.
On-Chip Instruction Cache Organization
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相关代理商/技术参数 |
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|---|---|
| MC68030FE16C | 功能描述:微处理器 - MPU 32B ON-CHIP CACHE MMU RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MC68030FE20 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:ENHANCED 32-BIT MICROPROCESSOR |
| MC68030FE20C | 功能描述:微处理器 - MPU 32B ON-CHIP CACHE MMU RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MC68030FE25 | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:ENHANCED 32-BIT MICROPROCESSOR |
| MC68030FE25C | 功能描述:微处理器 - MPU 32B ON-CHIP CACHE MMU RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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