rpc2a-433-64 Radiometrix Ltd, rpc2a-433-64 Datasheet - Page 20

• Manufacturer Part Number: rpc2a-433-64
• Description: Uhf Radio Packet Controller
• Manufacturer: Radiometrix Ltd

A
Example RPC2A driver subroutines for Arizona PIC16C73
Packet transfers to / from the RPC2A 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 RPC2A to return the data
bus to inputs (default state).
;--------------------------------------------------------------------;
;
;
;
;
;--------------------------------------------------------------------
;
;
;
RPC2A EQU
;
;
;
D7
D6
D5
D4
TXA
TXR
RXA
RXR
;
RPC2A_DDR 86
;
;
;--------------------------------------------------------------------
;
W
F
INDF
Radiometrix Ltd, RPC2A
figure 16: RPC2A to PIC - C interface
PPENDIX
** Bit assignments for RPC2A PORT **
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
EQU
RPC2A
- B
06
7
6
5
4
3
2
1
0
0
1
00
RXA
TXA
TXR
RXR
D3
D2
D1
D0
HOST PROCESSOR PIC16C73 or similar
;USE PORT B ON PIC
;Bi-Dir
;Bi-Dir
;Bi-Dir
;Bi-Dir
;INPUT
;OUTPUT
;OUTPUT
;INPUT
;This register is in BANK 1 of the register file
;Accumulator as Destination
;Register File as Destination
;INDirect File register
;Data direction register for port B (RPC2A)
ON RB0, CAN BE CONFIGURED AS AN INTERRUPT
RPC2A DRIVERS
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0 / IRQ
HOST
PIC
page 20