- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367820 > PCF8584 (NXP Semiconductors N.V.) IIC-bus controller(IIC總線控制器) PDF資料下載
參數(shù)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(jìn)口總線控制器） |
| 文件頁數(shù)： | 17/40頁 |
| 文件大?。?/td> | 224K |
| 代理商： | PCF8584 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁
1997 Oct 21
17
Philips Semiconductors
Product specification
I
2
C-bus controller
PCF8584
Fig.7 PCF8584 master receiver mode.
(1) The first read of the S0 register is a ‘dummy read’ of the slave address which should be discarded. The first read of the S0 register simultaneously
reads the current value of S0 and then transfers the first valid data byte from the I
2
C-bus to S0.
handbook, full pagewidth
A0 = LOW
Load 'Slave Address' into S0 register:
'Slave Address' = 7 bits
+
R/W = 1.
Is the I
2
C-bus busy
PCF8584 generates 'START' condition,
sends out slave address
+
RD to I
2
C-bus and
generates 9th clock pulse for slave ACK.
Set-up software counters.
Set ACK bit S1 to 0 in
preparation for negative
acknowledgement.
PCF8584 generates
'STOP' condition.
PCF8584 goes into
slave receiver mode.
This command transfers
the final data byte from
the data buffer to accumulator.
Because the STOP condition
was previously executed, no
I
C-bus activity takes place.
This command simultaneously
receives the final data byte
from the I
2
C-bus and loads
it into register S0.
Neg. ACK is also sent.
is bus busy
(BB = 0)
START
END
send byte 'slave address' to S0
A0 = HIGH
read byte from S1 status register
A0 = HIGH
send byte C5H to S1 control register
A0 = HIGH
read byte from S1 status register
A0 = LOW
read data byte from S0 register
(1)
n = n
+
1
n = 0 (data byte counter)
m = number of data bytes
to be read
yes
no
A0 = HIGH
send byte 40H to control register S1
A0 = LOW
read data byte from S0 register
(1)
A0 = HIGH
read byte from S1 status register
A0 = HIGH
send byte C3H to S1
A0 = LOW
read final data byte from S0 register
PIN = 0
no
yes
slave ACK
(LRB = 0)
n = m
1
yes
no
no
(an error
has occured)
PIN = 0
yes
MGL009
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCF8593 | Low power clock/calendar(低功耗時鐘/日歷) |
| PCF8801 | CRYSTAL RESONATOR, 6MHZ |
| PCF8801U | LCD driver for 140 x 2 segments |
| PCF8811 | 80 x 128 pixels matrix LCD driver |
| PCF8812 | CRYSTAL, 8.0 MHZ |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。