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參數資料
| 型號： | PCF8584 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | IIC-bus controller(IIC總線控制器) |
| 中文描述： | IIC總線控制器（國際進口總線控制器） |
| 文件頁數： | 15/40頁 |
| 文件大?。?/td> | 224K |
| 代理商： | PCF8584 |
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1997 Oct 21
15
Philips Semiconductors
Product specification
I
2
C-bus controller
PCF8584
Fig.5 PCF8584 initialization sequence.
handbook, full pagewidth
START
A0 = HIGH
A0 = LOW
reset minimum
30 clock cycles
delay: wait a time
equal to the longest I
2
C
message to synchronize
BB-bit. (multimaster
systems only
send byte 80H
send byte 55H
PCF8584 resets to
slave receiver mode
parallel bus interface
determined by
PCF8584 (80XX/68XXX)
initialization of
PCF8584 completed
send byte A0H
send byte 1CH
send byte C1H
END
address line A0
power-on
A0 = HIGH
A0 = LOW
A0 = HIGH
A0 = HIGH
enables data transfer to/from
register S1
A0 = LOW
Access to all other registers
defined by the bit pattern in
register S1
Loads byte 80H into register S1'
i.e. next byte will be loaded into register S0'
(own address register); serial interface off.
Loads byte 55H into register S0';
effective own address becomes AAH.
Loads byte A0H into register S1, i.e. next byte
will be loaded into the clock control register S2.
Loads byte 1CH into register S2;
system clock is 12 MHz; SCL = 90 kHz.
Loads byte C1H into register S1; register enable
serial interface, set I
C-bus into idle mode;
SDA and SCL are HIGH. The next write or read
operation will be to/from data transfer register
S0 if A0 = LOW.
On power-on, if an PCF8584 node is powered-up
slightly after another node has already begun an
I
C-bus transmission, the bus busy condition will
not have been detected. Thus, introducing this
delay will insure that this condition will not occur.
MBE714
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相關代理商/技術參數 |
參數描述 |
|---|---|
| PCF8584P | 制造商:NXP Semiconductors 功能描述:I2C Bus Controller 20-Pin PDIP Bulk |
| PCF8584P,112 | 功能描述:I2C 接口集成電路 PARALLEL TO I2C CONVERTER RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| PCF8584P112 | 制造商:NXP Semiconductors 功能描述:PARALLEL TO I2C BUS INTERFACE 8584 制造商:NXP Semiconductors 功能描述:IC I2C CONTROLLER DIP-20 |
| PCF8584PN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I/O Port |
| PCF8584T | 制造商:NXP Semiconductors 功能描述: 制造商:Texas Instruments 功能描述: 制造商:NXP Semiconductors 功能描述:I2C Bus Controller 20-Pin SO 制造商:PHILIPS-SEMI 功能描述: |
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