hi-3593 Holt Integrated Circuits, Inc., hi-3593 Datasheet - Page 7

• Manufacturer Part Number: hi-3593
• Description: 3.3v Arinc 429 Dual Receiver, Single Transmitter With Spi Interface
• Manufacturer: Holt Integrated Circuits, Inc.

Bit Name
7-6 R2INT[1:0]
5-4 R2FLAG[1:0]
3-2 R1INT[1:0]
1-0 R1FLAG[1:0]
FLAG / INTERRUPT ASSIGNMENT REGISTER
(Write, SPI Op-code 0x34)
(Read, SPI Op-code 0xD0)
R/W
R/W
R/W
R/W
R/W
Default Description
0
0
0
0
The value of R2INT[1:0] defines the function of the R2INT output pin, as follows:
The value of R2FLAG[1:0] defines the function of the R2FLAG output pin, as follows:
The value of R1INT[1:0] defines the function of the R1INT output pin, as follows:
The value of R1FLAG[1:0] defines the function of the R1FLAG output pin, as follows:
HOLT INTEGRATED CIRCUITS
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
HI-3593
MSB
7
R2INT pulses high when a valid message is received and
placed in the Receiver 2 FIFO or any of the Receiver 2 Priority-
Label mail boxes
R2INT pulses high when a message is received in Receiver 2
Priority-Label mail box #1
R2INT pulses high when a message is received in Receiver 2
Priority-Label mail box #2
R2INT pulses high when a message is received in Receiver 2
Priority-Label mail box #3
R2FLAG goes high when Receiver 2 FIFO is empty
R2FLAG goes high when Receiver 2 FIFO contains 32 ARINC
429 words (FIFO is full)
R2FLAG goes high when Receiver 2 FIFO contains at least
sixteen ARINC 429 words (FIFO is half-full)
R2FLAG goes high when Receiver 2 FIFO contains one or more
words (FIFO is not empty)
R1INT pulses high when a valid message is received and
placed in the Receiver 1 FIFO or any of the Receiver 1 Priority-
Label mail boxes
R1INT pulses high when a message is received in Receiver 1
Priority-Label mail box #1
R1INT pulses high when a message is received in Receiver 1
Priority-Label mail box #2
R1INT pulses high when a message is received in Receiver 1
Priority-Label mail box #3
R1FLAG goes high when Receiver 1 FIFO is empty
R1FLAG goes high when Receiver 1 FIFO contains 32 ARINC
429 words (FIFO is full)
R1FLAG goes high when Receiver 1 FIFO contains at least
sixteen ARINC 429 words (FIFO is half-full)
R1FLAG goes high when Receiver 1 FIFO contains one or more
words (FIFO is not empty)
7
6
5
4
3
2
1
LSB
0