参数资料
型号: M38002SFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 8 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64
文件页数: 162/174页
文件大小: 1752K
代理商: M38002SFP
APPLICATION
2.3 Serial I/O
2-39
3800 GROUP USER’S MANUAL
(3) Cyclic transmission or reception of block data (data of a specified number of bytes)
between microcomputers
[without using an automatic transfer]
Outline : When a clock synchronous serial I/O is used for communication, synchronization of the clock
and the data between the transmitting and receiving sides may be lost because of noise
included in the synchronizing clock. Thus, it is necessary to be corrected constantly. This
“heading adjustment” is carried out by using the interval between blocks in this example.
Fig. 2.3.24 Connection diagram [Cyclic transmission or reception of block data between
microcomputers]
Specifications : The serial I/O is used (clock synchronous serial I/O is selected).
Synchronous clock frequency : 131 kHz (f(XIN) = 4.19 MHz is divided by 32)
Byte cycle: 488
s
Number of bytes for transmission or reception : 8 byte/block
Block transfer cycle : 16 ms
Block transfer period : 3.5 ms
Interval between blocks : 12.5 ms
Heading adjustive time : 8 ms
Limitations of the specifications
1. Reading of the reception data and setting of the next transmission data must be completed
within the time obtained from “byte cycle – time for transferring 1-byte data” (in this example,
the time taken from generating of the Serial I/O receive interrupt request to generating of the
next synchronizing clock is 431
s).
2. “Heading adjustive time < interval between blocks” must be satisfied.
SCLK
Master unit
SCLK
Slave unit
TXD
RXD
TXD
RXD
相关PDF资料
PDF描述
MSC1212Y2PAGT 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64
M38067MC-XXXGP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP80
M38027E8SS 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP64
M30622M8P-XXXFP 16-BIT, MROM, 24 MHz, MICROCONTROLLER, PQFP100
M37478M4TXXXFP 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP56
相关代理商/技术参数
参数描述
M38002SSP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M38003E1-DXXXFP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
M38003E1-DXXXSP 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
M38003E1-XXXFP 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER
M38003E1-XXXFS 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER