RPC-UHF RADIOMETRIX [Radiometrix Ltd], RPC-UHF Datasheet - Page 21

• Manufacturer Part Number: RPC-UHF
• Description: Radio Packet Controller
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

A
Example RPC driver subroutines for Arizona PIC16C73
Packet transfers to / from the RPC are best handled in the host by two subroutines :- OUT_BYTE &
IN_BYTE
Additionally LISTEN_BUS is called on completion of a packet transfer to the RPC to return the data
bus to inputs (default state).
;--------------------------------------------------------------------;
;
;
;
;
;--------------------------------------------------------------------
;
;
;
RPC
;
;
;
D7
D6
D5
D4
TXA
TXR
RXA
RXR
;
RPC_DDR 86
;
;
;--------------------------------------------------------------------
;
W
F
INDF
Radiometrix Ltd, RPC
figure 16: RPC to PIC - µ µ µ µ C interface
PPENDIX
EQU
** Bit assignments for RPC PORT **
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
- B
06
7
6
5
4
3
2
1
0
0
1
00
HOST PROCESSOR PIC16C73 or similar
;USE PORT B ON PIC
;Bi-Dir
;Bi-Dir
;Bi-Dir
;Bi-Dir
;INPUT
;OUTPUT
;OUTPUT
;INPUT
;Data direction register for port B (RPC)
;This register is in BANK 1 of the register file
;Accumulator as Destination
;Register File as Destination
;INDirect File register
ON RB0, CAN BE CONFIGURED AS AN INTERRUPT
RPC DRIVERS
page 21