參數(shù)資料
型號(hào)： PCA9665
廠商： NXP Semiconductors N.V.
英文描述： Fm+ parallel bus to I2C-bus controller
中文描述： 調(diào)頻并行總線I2C總線控制器
文件頁數(shù)： 41/91頁
文件大小： 372K
代理商： PCA9665
PCA9665_2
NXP B.V. 2006. All rights reserved.
Product data sheet
Rev. 02 — 7 December 2006
41 of 91
NXP Semiconductors
PCA9665
Fm+ parallel bus to I
2
C-bus controller
If the LB bit is reset (logic 0), the PCA9665 will return an acknowledge for all the bytes that
will be received. The maximum number of bytes that are received in a single sequence is
defined by BC[6:0] in I2CCOUNT register as shown in
Table 39
.
If the LB bit is set (logic 1) during a transfer, the PCA9665 will return a not acknowledge
(logic 1) on SDA after receiving the last byte. If the AA bit is reset, the I
2
C-bus state
machine does not respond to its own slave address. However, the I
2
C-bus is still
monitored and address recognition may be resumed at any time by setting AA. This
means that the AA bit may be used to temporarily isolate the PCA9665 from the I
2
C-bus.
(1) See
Table 40
.
(2) Defined state when the number of bytes received is equal to the value in I2CCOUNT register and LB = 0.
(3) Defined state when the number of bytes received is equal to the value in I2CCOUNT register and LB = 1.
(4) Number of bytes received is lower than I2CCOUNT.
Fig 13. Format and states in the Slave Receiver Buffered mode (MODE = 1)
S
SLA
W
A
DATA
A
P or S
80h
(2)
A0h
A
68h
002aab661
reception of
own slave address
and one or more
data bytes;
all are Acknowledged
last data byte received is
Not Acknowledged
arbitration lost as MST and
addressed as slave
DATA
A
80h
(2)
P or S
F8h
on STOP
A
88h
(3)
P or S
F8h
on STOP
GENERAL
CALL = 00h
A
DATA
A
P or S
E0h
(2)
A0h
A
D8h
DATA
A
E0h
(2)
P or S
A
E8h
(3)
reception of the
General Call address
and one or more
data bytes
last data byte received is
Not Acknowledged
arbitration lost as MST and
addressed as slave by
General Call
S
F8h
on STOP
W
P or S
F8h
on STOP
A
DATA
A
DATA
60h
D0h
n
This number (contained in I2CSTA) corresponds
to a defined state of the I
2
C-bus.
(1)
DATA
A
any number of data bytes and
their associated Acknowledge bits
from master to slave
from slave to master
(4)
(4)
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PCA9665BS,118 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR 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
PCA9665BS-T 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR 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
PCA9665D 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR 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
PCA9665D,112 功能描述:I2C 接口集成電路 FM+ I2C BUS CONTRLLR 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
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