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Radiocrafts
RC11xx-RC232
Embedded Wireless Solutions
tOFF-IDLE
OFF
IDLE
tRESET-IDLE
RESET
IDLE
tSLEEP-IDLE
SLEEP
IDLE
tCONFIG-PROMPT
IDLE
tC-CONFIG
CONFIG
MEMORY CONFIG
’M’
Symbol
tRX-TXD
Value
180 us
tTXD
Min 590 us
tTXD-IDLE
900 us
TRXD-CTS
20 us
tRXD-TX
960 us
TTX-IDLE
960 us
tOFF-IDLE
tRESET-IDLE
tSLEEP-IDLE
tCONFIG-
3.2 ms
3.0 ms
1.28 ms
590 us
IDLE
’X’
’C’
CONFIG
set low
CONFIG
tCONFIG-IDLE
CONFIG
tCONFIG-IDLE
tMEMORY-CONFIG
CONFIG
0xFF
IDLE
’X’
Description / Note
Time from last byte is received from the air until first character is sent
on the UART
tTXD = # bytes received x 590 us/char (10 bits at 19.2 kBd + 70 us
delay per character)
Time from last character is sent on the UART until module is in IDLE
mode (ready for RXD and RX)
Time from last character is received by the UART (including any
timeout) until CTS is activated
Time from last character is received by the UART (including any
timeout) until the module sends the first byte on the air.
Time from last character is sent on the air until module is in IDLE
mode (ready for RXD and RX)
Time from CONFIG pin is set low until prompt (“>”)
PROMPT
tC#-CONFIG
1.1 ms
tMEMORY-
30.52 ms
CONFIG
TCONFIG-
Delay after channel-byte is sent until prompt (“>”). (For other
commands like ’M’, ’T’ there is no delay but immediate prompt)
In this period the internal flash is programmed. Do not reset, turn the
module off, or allow any power supply dips in this period as it may
cause permanent error in the Flash configuration memory. After 0xFF
the host should wait for the ‘>’ prompt before any further action is
done to ensure correct re-configuration.
1.42 ms
IDLE
tTX
Min 20 ms
TRSSI
4 ms
2010 Radiocrafts AS
tTX = # bytes to send x 1.67 ms/byte (at 4.8 kbit/s) + 7 bytes preamble,
sync and length + 2 bytes address + 2 bytes CRC
Time from end of S command to start of RSSI byte received on UART
RC11xx-RC232 Data Sheet (rev. 1.42)
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