R2000 datasheet(40/75 Pages) ETC

40 / 75 page

Indy® R2000 Electrical, Mechanical, & Thermal Specification

Addr.

Name

R/W

Bit

Description

Reset

Type

Comment

105

T2R

15:0

15:12

10:8

7:0

Address for the T2R FIFO

Not Used

Data valid

Number of valid bits

Received data

h0000

Behavior depends on if a

write(W) or read(R) is

being performed. If being

read, the T2R

behavior(this row) is used.

If being written, the R2T

behavior (next row) is

used.

This register is auto-

readable.

Receive FIFO, 16 words

deep.

In the number of valid bits,

0 means full byte, 1 means

1 bit, etc.

R2T

Data Command

Non-data command

End of transfer cmd

Measurement cmd

15:12

11:8

7:4

3:0

15:11

10:9

8:6

5:2

1:0

15:4

2:0

15:10

7:4

2:0

Argument (arg2)

Argument (arg1)

Argument (arg0)

Command selection (cmd)

Number of loops

Lines to loop

Lines to execute

Start line

Command selection

RX delay

Enable digital RX

Command selection

RSSI delay

Enable digital RX

Enable RSSI

AUX ADC select

Not used

Command selection

h0000

Transmit FIFO, 16 words

deep.

The command selection

sets the data command to

be performed:

cmd = b0000: Data-0

cmd = b0010: Data-1

cmd = b1000: Default

symbol

cmd = b1100: Byte or N-

bits stored in arg 1 and

arg0. arg2 determines the

number of determines bits

to send, where 0 = 8 bits.

cmd = b1110: Send

random sequence.

Specified in 32-bit packets

in arg2-arg0, zero = 4096

packets and one = 1

packet.

The command selection

shall be set to b01.

For lines to execute and

lines to loop a zero value

means execute/loop one

line.

The start line is the offset

in the microcode, starting

in register h080.

The command selection

shall be set to b011.

RX delay is the delay (in

24 MHz clock cycles) to

wait after the EOT

command is read from the

FIFO before enabling the

digital part of the receiver.

The command selection

shall be set to b111.

The AUX ADC select is

the channel for the ADC to

measure. Turning on the

RSSI and the digital part of

the receiver is optional.

The RSSI measurement

can be offset from the

receiver start by specifying

the RSSI delay.

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