pca9501 NXP Semiconductors, pca9501 Datasheet - Page 13

• Manufacturer Part Number: pca9501
• Description: 8-bit I2c And Smbus I/o Port With Interrupt, 2-kbit Eeprom And 6 Address Pins
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TYPICAL APPLICATION
Applications
A central processor/controller typically located on the system main
board can use the 400 kHz I
located on the system cards for status or version control type of
information. The PCA9501 may be programmed at manufacturing to
store information regarding board build, firmware version,
2004 Sep 30
Board version tracking and configuration
Board health monitoring and status reporting
Multi-card systems in Telecom, Networking, and Base Station
Infrastructure Equipment
Field recall and troubleshooting functions for installed boards
8-bit I
2-kbit EEPROM and 6 address pins
CPU
OR
C
2
C and SMBus I/O port with interrupt,
I
2
C
UP TO 64 CARDS
2
C/SMBus to poll the PCA9501 devices
I
I
I
I
I
2
2
2
2
2
C
C
C
C
C
Figure 20. Typical application
CARD ID, SUBROUTINES, CONFIGURATION DATA, OR REVISION HISTORY
CONFIGURATION CONTROL
PCA9501
CONTROL
13
EEPROM
manufacturer identification, configuration option data
these devices can be used as convenient interface for board
configuration, thereby utilizing the I
communication bus.
General-purpose integrated I/O with memory
Replacement for PCF8574 with integrated 2-kbit EEPROM
Bus master sees GPIO and EEPROM as two separate devices
Six hardware address pins allow up to 64 PCA9501s to be located
in the same I
ASIC
GPIO
2
C/SMBus
MONITORING
CONTROL
AND
2
C/SMBus as an intra–system
INPUTS
ALARM
LEDs
PCA9501
Product data sheet
Alternately,
SW02007