pca9564 NXP Semiconductors, pca9564 Datasheet - Page 4

• Manufacturer Part Number: pca9564
• Description: Parallel Bus To I2c-bus Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2006 Sep 01
SDA
Parallel bus to I
SCL
PCA9564
ENSIO STA STO SI
CLOCK SELECTOR
AA ENSIO STA STO SI
SCL CONTROL
OSCILLATOR
SDA CONTROL
2
C-bus controller
FILTER
FILTER
CR0
CR1
CR2
CE
BIT7
SD7
ST7
D7
TE
AA
WR
Figure 1. Block diagram
ENSIO
BIT6
I2CCON – CONTROL REGISTER – READ/WRITE
SD6
TO6
ST6
D6
I2CTO – TIMEOUT REGISTER – WRITE ONLY
I2CSTA – STATUS REGISTER – READ ONLY
I2CDAT – DATA REGISTER – READ/WRITE
I2CADR – OWN ADDRESS – READ/WRITE
BIT5
RD
SD5
TO5
STA
ST5
D5
INTERRUPT CONTROL
4
CONTROL SIGNALS
BUS BUFFER
BIT4
SD4
TO4
STO
ST4
D4
DATA
INT
BIT3
SD3
TO3
ST3
D3
SI
BIT2
SD2
TO2
CR2
ST2
D2
RESET
BIT1
SD1
TO1
CR1
ST1
D1
CONTROL BLOCK
A1
BIT0
SD0
TO0
CR0
ST0
D0
A0
A1
0
0
1
0
1
POWER–ON
PCA9564
A0
Product data sheet
RESET
1
0
0
0
1
V
DD
SW02262