P82C150AFT Philips Semiconductors, P82C150AFT Datasheet - Page 8

• Manufacturer Part Number: P82C150AFT
• Description: CAN Serial Linked I/O device SLIO with digital and analog port functions
• Manufacturer: Philips Semiconductors

Philips Semiconductors
7
7.1
The P82C150 provides 16 port pins (P15 to P0) which are
individually configurable via CAN-bus. Besides the digital
I/O functions some of these port pins provide analog I/O
functions.
7.1.1
Input levels HIGH and LOW on the port pins (P15 to P0)
can be read in two ways by the host node:
7.1.2
The Data Output Register is set via a CAN message.
Its content is only output when the corresponding bits of
the Output Enable Register are set to logic 1s.
7.1.3
1996 Jun 19
Polling: a Remote Frame is sent to the P82C150 to be
answered by a Data Frame containing the Data Input
Register contents.
Event capture: in case of edge-triggered mode, the
P82C150 sends the same Data Frame caused by the
event of a rising and/or falling edge on the
corresponding port pins (see Table 3).
Up to six multiplexed analog input signals for
analog-to-digital conversion or general purpose
Up to two quasi-analog output channels (DPM;
Distributed Pulse Modulation)
Two input comparators, for example for window
comparator applications
A separate analog-to-digital input comparator with
feedback output.
CAN Serial Linked I/O device (SLIO) with
digital and analog port functions
FUNCTIONAL DESCRIPTION
I/O functions
D
D
A
NALOG INPUT
IGITAL INPUT FUNCTIONS
IGITAL OUTPUT FUNCTIONS
/
OUTPUT FUNCTIONS
8
Analog-to-digital converted digital results are obtained by
reading the Analog-to-Digital Conversion (ADC) Register.
Analog functions of each port pin are individually
controlled by the Analog Configuration Register.
Writing the I/O registers is done serially via CAN-bus by
Data Frames. The first data byte contains the register
address, and the second and third data bytes represent
the register contents. If a read only register is addressed,
the contents of the second and third data bytes are
ignored.
It is recommended to set unused port pins to HIGH
(100 k resistor to V
handbook, halfpage
Px
MHA068
P82C150
Fig.4 I/O port pins.
DD
).
3-state buffer
Preliminary specification
P82C150
DOx
OEx
DIx