rpc2a-000-dil Radiometrix Ltd, rpc2a-000-dil Datasheet - Page 6

• Manufacturer Part Number: rpc2a-000-dil
• Description: Uhf Radio Packet Controller
• Manufacturer: Radiometrix Ltd

Data is transferred between the RPC2A and the H
asynchronous protocol. The nibbles are always sent in pairs to form a byte, the Least Significant Nibble
(bits 0 to 3) is transferred first, followed by the Most Significant Nibble (bits 4 to 7). Two pairs of
handshake lines, R
TX Request & TX Accept:
RX Request & RX Accept:
A packet transferred between host and RPC2A consists of between 1 and 28 bytes, the first byte of the
packet is always the control byte.
There are two classes of H
1. Data Packets:
2. Memory Access:
Radiometrix Ltd, RPC2A
figure 6: RPC2A
Packet To Transmit
OST
O
0
0
Host data transfer
0
EQUEST
Byte Count (1-27)
To the transmitter or from the receiver
To or from the RPC2A's memory
ATA
RPC2A
OST
& A
RANSFER
CCEPT
control the flow from the HOST to the RPC2A (download)
control the flow from the RPC2A to the HOST (upload)
RPC2A transfers:
, control the flow of data in each direction:-
OST
Received Packet
4 bits (nibbles) at a time using a fully
RPC2A
3 data byte
2
rd
nd
1 data byte
data byte
st
control byte
0
7
0
6
0
5
Byte Count (1-27)
5 bits
0
page 6