pca9665 NXP Semiconductors, pca9665 Datasheet - Page 3

• Manufacturer Part Number: pca9665
• Description: Fm+ Parallel Bus To I2c-bus Controller
• Manufacturer: NXP Semiconductors

NXP Semiconductors
5. Block diagram
PCA9665_2
Product data sheet
Fig 1. Block diagram of PCA9665
SDA
SCL
PCA9665
AA ENSIO STA STO SI
ENSIO STA STO SI
CLOCK SELECTOR
OSCILLATOR
SCL CONTROL
SDA CONTROL
FILTER
FILTER
68-BYTE
BUFFER
CE
BIT7
SD7
AD7
ST5
Rev. 02 — 7 December 2006
IR7
AA
TE
D7
LB
H7
L7
–
–
WR
INDIRECT – indirect register access – read/write
I2CPRESET – software reset register – write only
I2CMODE – I
ENSIO STA
INDPTR – indirect address pointer – write only
BIT6
BIT6
SD6
BC6
AD6
ST4
IR6
H6
D6
L6
I2CSCLH – SCL HIGH period – read/write
–
–
I2CSCLL – SCL LOW period – read/write
I2CTO – TIMEOUT register – read/write
I2CCON – control register – read/write
I2CCOUNT – byte count – read/write
I2CSTA – status register – read only
I2CADR – own address – read/write
I2CDAT – data register – read/write
BIT5
BIT5
SD5
BC5
AD5
ST3
RD
IR5
D5
H5
L5
–
–
INTERRUPT CONTROL
2
C-bus mode register – read/write
control signals
BUS BUFFER
STO
BIT4
BIT4
SD4
ST2
BC4
AD4
IR4
H4
D4
L4
–
–
data
INT
BIT3
BIT3
SD3
BC3
AD3
ST1
IR3
D3
H3
L3
SI
–
–
BIT2
BIT2
Fm+ parallel bus to I
SD2
ST0
BC2
AD2
IR2
IP2
H2
D2
L2
–
–
RESET
BIT1
BIT1
SD1
BC1
AD1
AC1
IP1
IR1
D1
H1
L1
CONTROL BLOCK
0
–
MODE
A1
BIT0
BIT0
SD0
BC0
AC0
IR0
IP0
GC
H0
D0
L0
0
A0
PCA9665
indirect registers
© NXP B.V. 2006. All rights reserved.
2
direct registers
C-bus controller
A1
0
0
0
1
1
INDPTR
00h
01h
02h
03h
04h
05h
06h
POWER-ON
V
DD
RESET
A0
1
0
0
1
0
002aab023
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