参数资料
型号: MC68302CPV16VC
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
封装: 20 X 20 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASITC, LQFP-144
文件页数: 49/128页
文件大小: 641K
代理商: MC68302CPV16VC
MC68EN302 Module Bus Controller
2-10
MC68EN302 REFERENCE MANUAL
MOTOROLA
reduced one extra clock. A0 is incremented one half clock earlier in this scheme to allow
sufficient address access in the second portion of the bus cycle. Figure 2-6 shows the fast
cycle read case, while Figure 2-7 shows the fast cycle write case. In order to use fast cycles
with SRAM, the CS signal is high between cycles, accommodating a write to SRAMs.
Figure 2-6. Fast Cycle Word Read with –1 Wait State
Figure 2-7. Fast Cycle Word Write with -1 Wait State
2.9.2 Bus Error Handling
Since the external bus may operate as an 8-bit bus, at the same time the internal bus
operates as 16-bits, a bus error passed from the external bus to the internal bus does not
specify which byte has been faulted. To assure that information is not lost, the Bus Error
S2
S3
S4
S5
S0
S1
CLOCK
S0
S1
S2
S3
ADDR23-1
ADDR0
AS/CS
RW
DATA
UDS/LDS
S2
S3
S4
S5
S0
S1
CLOCK
S0
S1
S2
S3
ADDR23-1
ADDR0
AS
RW
DATA
UDS/LDS
CS
相关PDF资料
PDF描述
MC68331CFC16B1 32-BIT, 16 MHz, MICROCONTROLLER, PQFP132
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
相关代理商/技术参数
参数描述
MC68302CRC16 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual
MC68302CRC16C 功能描述:微处理器 - MPU 68K INTGR COM PROC DMA 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
MC68302CRC20 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Integrated Multiprotocol Processor User’s Manual
MC68302CRC20C 功能描述:微处理器 - MPU 68K INTGR COM PROC DMA 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