hi-3111pstf Holt Integrated Circuits, Inc., hi-3111pstf Datasheet - Page 2

• Manufacturer Part Number: hi-3111pstf
• Description: Avionics Can Controller With Integrated Transceiver
• Manufacturer: Holt Integrated Circuits, Inc.

BLOCK DIAGRAM
SPI BUS
SPI PROTOCOL BLOCK
Handles data transfers between the host and the chip
REGISTERS BLOCK
Stores configuration data
BIT TIMING BLOCK
Sets the data strobe and bit period
TRANSMIT BLOCK
Manages transmission protocol
8 message FIFO
Confirmation and time stamp of each message sent
is available in the History FIFO
RECEIVER BLOCK
Manages reception protocol
(see ordering
information)
CLKOUT
OSCOUT
OSCIN
TXEN
STAT
GP1
SCK
GP2
INT
CS
SO
SI
SPI DECODE/
INTERRUPTS
ENCODE
STATUS
PRIMARY FUNCTIONS OF HI-3110 LOGIC BLOCKS
AND
OSCILLATOR
CLOCK DIV
OUT
HOLT INTEGRATED CIRCUITS
& CONTROL
Figure 1. HI-3110 Block Diagram
STATUS
ERROR
REGISTERS
COUNTER
TIME-TAG
HI-3110
8 message FIFO with optional filters
Forwards message data and optional time stamp to the host
ERROR BLOCK
Detects and records errors for protocol management
STATUS AND INTERRUPT
Provides hardware and software options for managing
communications
OSCILLATOR
Configuration chooses either the crystal oscillator or and
external clock
TRANSCEIVER
Analog interface connects directly to the CAN bus
2
LOGIC & FIFO
LOGIC & FIFO
TRANSMIT
HISTORY
RECEIVE
FILTERS
TIMING
FIFO
BIT
TRANSCEIVER
HI-3110
(see ordering
information)
VLOGIC
GND
VDD
SPLIT
CANH
CANL
MR