Rainbow Electronics AT76C551 - Manual (Page 34)

34
AT76C551
1612D–08/01
RSSI_CtrlStatus
addr: 600014 hex R/W 32 bits
• Bits 31..16 – Reserved
• Bits 15..8 R – ADC data
Result of last conversion (last RSSI value sampled)
• Bit 7 – R ADC Status
Set by hardware when conversion procedure has been completed
• Bits 6..4 – Reserved
• Bits 3..2 W – ADC Mode
00: ADC idle
01: One shot conversion
10: Continuous conversion
• Bit 1 – W ADC Start
Set by firmware to start a conversion procedure when ADC mode is “one shot conversion”
(auto-clear).
• Bit 0 – W ADC Power
0: ADC off
1: ADC on
Note: Default Value: 0000 hex
Controlstatus1
addr: 600018 hex R/W 32 bits
• Bits 31..19 – Reserved
• Bits 18..9 – Packet_header
Sets packet header before packet TX.
Gets packet header after packet header RX during packet RX.
• Bits 8..0 – Payload_length
Sets payload body length before data packet TX
Gets payload body length after payload header RX during packet RX
Note: Default Value: 00000000 hex
CtrlStatus2
addr: 60001C hex R/W 32 bits
• Bits 31..20 – Reserved
• Bit 19 R – AccCodeBusy
Set by hardware during access code calculation or transmission
• Bit 18 R – CipherBusy
Set by hardware during ciphering/deciphering
• Bit 17 R – E_funBusy
Set by hardware during E_function calculation