AT88RF1354 SPI User Guide For CryptoRF
4.3.1
Memory Map Field Descriptions (alphabetical)
BYTE
:
Byte Error. A one indicates the received packet was incomplete.
CD
:
Carrier Detect. A one indicates the receiver is detecting 847.5 kHz sub-carrier.
COL
:
Collision Error. A one indicates a collision was detected during polling.
CRC
:
CRC Error. A one indicates an error in the received data packet.
ENB
:
CLKO Output Enable Bar. A one disables the CLKO output.
FRAME
:
Framing Error. A one indicates the received packet is not in a valid frame.
FWI:
Frame Waiting Interval. Used to select the time the reader waits for a response to
begin after a command is transmitted. The Frame Waiting Time (FWT) is calculated
from FWI using the formula in the un-amended ISO/IEC14443-3 base standard.
G
:
Receiver Gain Adjustment. Typical Setting is $1.
ID
:
Hardware Revision ID.
ML
:
Modulation Level. Adjusts the level of a zero transmitted by the reader. Typical
setting is 0001000 b.
RF
:
RF Field Enabled. A one indicates RF field is ON.
RFU
:
Reserved for Future Use. All RFU bits contain 0 b.
POR
:
Power On Reset. A one indicates the RF Interface of the chip is in reset due to low
supply voltage.
RSx
:
CLKO Rate Select bit. This field sets the PLL frequency for CLKO pin.
SL0:
Oscillator Sleep. A one turns the crystal oscillator off in standby mode.
SL1
:
PLL Sleep. A one turns the PLL off in standby mode.
SPE
:
Smart Poll Error. A one indicates that when the maximum specified number of slots
was polled, collisions were detected in all slots.
SS
:
Receiver Squelch. Adjust the receiver noise immunity. Typical Setting is $5 to $7.
TIME
:
Timeout Error. A one indicates the specified waiting time has expired with no
response received.
TXP
:
Transmit Power. 1 b selects low RF power. 0 b selects high RF power.
4-3
8586A—RFID—5/09