RPC-000-DIL RADIOMETRIX [Radiometrix Ltd], RPC-000-DIL Datasheet - Page 11

• Manufacturer Part Number: RPC-000-DIL
• Description: UHF Radio Packet Controller
• Manufacturer: RADIOMETRIX [Radiometrix Ltd]

3.0 RPC2A’
S
S
WITCHES
S
is memory location 00h in RAM, it contains 8 flags which are used to determine the RPC2A's
WITCHES
operation. On RPC2A reset, power-up or watchdog Time-Out it is loaded from location 08h (in
EEPROM). The default value is 00 hex - this is all functions deselected.
figure 12: Switches
3.1 PS0 & PS1 - P
S
OWER
AVING
The RPC2A has 4 levels of power saving selected by PS0 & PS1 in SWITCHES. Power saving is
achieved by shutting down the Transceiver and the RPC2A for a period of time (O
-T
) when the
FF
IME
RPC2A is in the Idle state (i.e. nothing happening). During the O
period current is reduced to the
FF
device leakage of <50 A typ. The RPC2A will still respond immediately to a Host TX Request but
cannot receive radio signals. After the programmed O
-T
the RPC2A will wake itself up, turn the
FF
IME
receiver on and listen for valid preamble. ON time = PWR->RX (EEPROM address 05h) + 1ms = 4ms
(using RPC2A Default values) If preamble is found the RPC2A will stay ON and decode the packet, if
not
the RPC2A will shut down for another OFF time period.
Also see - WAKE-UP (address 02h of EEPROM) and paragraph 2.2.2 .
Radiometrix Ltd, RPC2A
page 11