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參數(shù)資料
| 型號： | M38049FFHFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | 14 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-64 |
| 文件頁數(shù)： | 86/116頁 |
| 文件大小： | 1261K |
| 代理商： | M38049FFHFP |
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Rev.1.01
Jan 25, 2005
page 71 of 114
REJ03B0131-0101Z
3804 Group (Spec. H)
Example of Master Transmission
An example of master transmission in the standard clock mode, at
the SCL frequency of 100 kHz and in the ACK return mode is
shown below.
Set a slave address in the high-order 7 bits of the I2C slave ad-
dress register and “0” into the RWB bit.
Set the ACK return mode and SCL = 100 kHz by setting “8516”
in the I2C clock control register (S2: address 001516).
Set “0016” in the I2C status register (S1: address 001316) so
that transmission/reception mode can become initializing condi-
tion.
Set a communication enable status by setting “0816” in the I2C
control register (S1D: address 001416).
Confirm the bus free condition by the BB flag of the I2C status
register (S1: address 001316).
Set the address data of the destination of transmission in the
high-order 7 bits of the I2C data shift register (S0: address
001116) and set “0” in the least significant bit.
Set “F016” in the I2C status register (S1: address 001316) to
generate a START condition. At this time, an SCL for 1 byte and
an ACK clock automatically occur.
Set transmit data in the I2C data shift register (S0: address
001116). At this time, an SCL and an ACK clock automatically
occur.
When transmitting control data of more than 1 byte, repeat step
.
Set “D016” in the I2C status register (S1: address 001316) to
generate a STOP condition if ACK is not returned from slave re-
ception side or transmission ends.
Example of Slave Reception
An example of slave reception in the high-speed clock mode, at
the SCL frequency of 400 kHz, in the ACK non-return mode and
using the addressing format is shown below.
Set a slave address in the high-order 7 bits of the I2C slave ad-
dress register and “0” in the RWB bit.
Set the no ACK clock mode and SCL = 400 kHz by setting
“2516” in the I2C clock control register (S2: address 001516).
Set “0016” in the I2C status register (S1: address 001316) so
that transmission/reception mode can become initializing condi-
tion.
Set a communication enable status by setting “0816” in the I2C
control register (S1D: address 001416).
When a START condition is received, an address comparison is
performed.
When all transmitted addresses are “0” (general call):
AD0 of the I2C status register (S1: address 001316) is set to “1”
and an interrupt request signal occurs.
When the transmitted addresses agree with the address set in
:
AAS of the I2C status register (S1: address 001316) is set to
“1” and an interrupt request signal occurs.
In the cases other than the above AD0 and AAS of the I2C sta-
tus register (S1: address 001316) are set to “0” and no interrupt
request signal occurs.
Set dummy data in the I2C data shift register (S0: address
001116).
When receiving control data of more than 1 byte, repeat step .
When a STOP condition is detected, the communication ends.
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38049FFLHP#U0 | 制造商:Renesas Electronics Corporation 功能描述: |
| M38049RLSS | 功能描述:DEV EMULATOR CHIP RAM 2KB 64SDIP RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 內(nèi)電路編程器、仿真器以及調(diào)試器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 19/Jul/2010 標準包裝:1 系列:* 類型:* 適用于相關產(chǎn)品:* 所含物品:* |
| M3806 | 功能描述:電纜固定件和配件 LTSCG 625 BLACK RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強度: |
| M3806 BK001 | 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 1000' |
| M3806 BK002 | 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 500' |
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