- 您现在的位置：买卖IC网 > PDF目录80443 > M37512FCHP 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 PDF资料下载
参数资料
| 型号： | M37512FCHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| 封装： | 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48 |
| 文件页数： | 32/89页 |
| 文件大小： | 877K |
| 代理商： | M37512FCHP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页当前第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页
Feb 18, 2005
page 36 of 85
REJ03B0122-0101
7512 Group
Fig. 39 Address data communication format
S
Slave address R/W
A
Data
A/A
P
A
Data
7 bits
“0”
1 to 8 bits
(1) A master-transmitter transnmits data to a slave-receiver
S
Slave address R/W
A
Data
A
P
A
Data
7 bits
“1”
1 to 8 bits
(2) A master-receiver receives data from a slave-transmitter
7 bits
“0”
8 bits
(3) A master-transmitter transmits data to a slave-receiver with a 10-bit address
1 to 8 bits
S
R/W
A
Slave address
1st 7 bits
Slave address
2nd bytes
A
Data
P
A/A
7 bits
“0”
8 bits
(4) A master-receiver receives data from a slave-transmitter with a 10-bit address
S : START condition
A : ACK bit
Sr : Restart condition
P : STOP condition
R/W : Read/Write bit
7 bits
“1”
1 to 8 bits
S
R/W
A
Slave address
1st 7 bits
Slave address
2nd bytes
A
Sr
Slave address
1st 7 bits
R/W
A
Data
P
A
: Master to slave
: Slave to master
A
Address Data Communication
There are two address data communication formats, namely, 7-bit
addressing format and 10-bit addressing format. The respective
address communication formats are described below.
(1)7-bit addressing format
To adapt the 7-bit addressing format, set the 10BIT SAD bit of
the I2C control register (address 002E16) to “0”. The first 7-bit
address data transmitted from the master is compared with the
high-order 7-bit slave address stored in the I2C address register
(address 002C16). At the time of this comparison, address com-
parison of the RWB bit of the I2C address register (address
002C16) is not performed. For the data transmission format
when the 7-bit addressing format is selected, refer to Figure 39,
(1) and (2).
(2)10-bit addressing format
To adapt the 10-bit addressing format, set the 10BIT SAD bit of
the I2C control register (address 002E16) to “1”. An address
comparison is performed between the first-byte address data
transmitted from the master and the 8-bit slave address stored
in the I2C address register (address 002C16). At the time of this
comparison, an address comparison between the RWB bit of
the I2C address register (address 002C16) and the R/W bit
which is the last bit of the address data transmitted from the
master is made. In the 10-bit addressing mode, the RWB bit
which is the last bit of the address data not only specifies the
direction of communication for control data, but also is pro-
cessed as an address data bit.
When the first-byte address data agree with the slave address,
the AAS bit of the I2C status register (address 002D16) is set to
“1”. After the second-byte address data is stored into the I2C
data shift register (address 002B16), perform an address com-
parison between the second-byte data and the slave address
by software. When the address data of the 2 bytes agree with
the slave address, set the RWB bit of the I2C address register
(address 002C16) to “1” by software. This processing can make
the 7-bit slave address and R/W data agree, which are re-
ceived after a RESTART condition is detected, with the value of
the I2C address register (address 002C16). For the data trans-
mission format when the 10-bit addressing format is selected,
refer to Figure 39, (3) and (4).
相关PDF资料 |
PDF描述 |
|---|---|
| M38867E8AFS | 8-BIT, UVPROM, 5 MHz, MICROCONTROLLER, CQCC80 |
| M37477M4TXXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO32 |
| MB90F343EPF | MICROCONTROLLER, PQFP100 |
| MB90F349EPFV | MICROCONTROLLER, PQFP100 |
| M30623MA-XXXGP | 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37512FCH-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37512FC-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M-375-1-342 | 制造商:Brady Corporation 功能描述:WIRE MARKER SLEEVES, HEAT-SHRINK, 1.015"W, 80; Marker Material:PO (Polyolefin); Marker Dimensions:16.38mm x 25.78mm; Legend:Blank (No Legend); Legend Color:Black; Background Color:White; Color:Black on White; Series:M ;RoHS Compliant: Yes |
| M37513E1-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37513E2-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。