TDA5235
Functional Description
SelfPolling Mode
SelfPolling scenario
ConfigA
ConfigB
OFF-time
Sleep Mode
RSSI level too low Î
Chip stays in Self Polling Mode
and sends no interrupt
Interrupt signal
for RSSI
RunMode SelfPolling
SelfPolling / Sleep
Interrupt signal
for RSSI
RunMode SelfPolling
SelfPolling / Sleep
µC detects invalid data and sends
„EXTTOTIM“Î goto SPM
Interrupt signal
for RSSI
µC finished data reception,
sends „EXTEOM found“
RunMode SelfPolling
SelfPolling / Sleep
Figure 52
External Data Processing
The SFR bit group EXTPROC in the x_CHCFG register can be activated for each
configuration set for an easier handling of external data processing by the Application
Controller. Depending on the intended transparent receive mode an activation of this
function means:
• Data path in front of Framer Unit is no longer closed (so that no data is going into
Framer Unit accidentally)
• Interrupts for FSync, MID and EOM are deactivated internally
• Some/all TOTIM counters are deactivated
• Some/all Wake-up on Data Criteria are disabled
• Wake-up on Signal Recognition is/is not disabled
Data Sheet
81
V1.0, 2010-02-19
INFINEON [ Infineon ]
