WI.DP1205-XXX-R DATASHEET

11

5. Data Operation Modes

The XE1205 is user-programmable between two modes of operation:

Continuous Mode

: each bit transmitted or received is accessed directly at the DATA input/output pin.

Buffered Mode

: a 16-byte FIFO is used to store each data byte transmitted or received. This data is written

to/read from the FIFO via the SPI bus. It reduces processor overhead and reduces connections (the DATA

input/output pin is not used in this operation mode)

In receiver mode, two lines are dedicated to interrupt information. The interrupt pins are IRQ0 and IRQ1. IRQ0

has 3 selectable sources. IRQ1 has 2 selectable sources. The two following tables summarize the interrupt

management.

IRQParam RX irq 0

MCParam Buffered Mode

IRQ0

IRQ0 Interrupt Source

00

1

Output

No interrupt available

01

1

Output

Write_byte

10

1

Output

/fifoempty

11

1

Output

Pattern

00

0

Output

Pattern

01

0

Output

RSSI_irq

10

0

Output

Pattern

11

0

Output

Pattern

Table 4, IRQ0 Interrupt Sources in Receive Mode

IRQParam RX irq 1

MCParam Buffered Mode

IRQ1

IRQ1 Interrupt Source

00

1

Output

No interrupt available

01

1

Output

Fifofull

10

1

Output

RSSI_irq

11

1

Output

RSSI_irq

00

0

Output

DCLK

01

0

Output

DCLK

10

0

Output

DCLK

11

0

Output

DCLK

Table 5, IRQ1 Interrupt Sources in Receive Mode

For more information about the data operation modes, please refer to the XE1205 datasheet chapter:

Description.

Chapter

5