TDA18271HD/C2.557 NXP Semiconductors, TDA18271HD/C2.557 Datasheet - Page 41

• Manufacturer Part Number: TDA18271HD/C2.557
• Manufacturer: NXP Semiconductors

Specifications of TDA18271HD/C2.557

• Lead Free Status / Rohs Status: Compliant

NXP Semiconductors
TDA18271HD_4
Product data sheet
Fig 20. Flowchart TDA18271ThermometerRead
TM_D
TM_RANGE
9.4.16 Flowchart TDA18271Read
No
Table 41.
The internal software registers are never updated at any time during the read procedure
but are updated when the TDA18271Read is called.
The I
sequences. The chip can only be read by performing read sequences TDA18271Read
(16 bytes) or TDA18271ReadExtended (39 bytes).
Function
Description
Input
Table
Output
2
Actions
Switch thermometer ON
Read thermometer information
Call TDA18271Read
Switch TM_RANGE
Wait 10 ms - temperature sensing
Read thermometer information
Call TDA18271Read
Find TMVALUE = f (TM_D, TM_RANGE) in
THERMOMETER_map
Switch thermometer OFF
Normal mode
C-bus read in the TDA18271HD does not support subaddressing or variable length
(TM_D = 8) and (TM_RANGE = 0)
(TM_D = 0) and (TM_RANGE = 1)
TDA18271Read
TDA18271ThermometerRead
TDA18271ThermometerRead
Description
reads the first 16 bytes of the TDA18271HD
MS
-
an image of the tuner registers from TM to MD3
Start
End
or
Yes
Rev. 04 — 19 May 2009
Internal table
TM_ON = 1
TM_RANGE = not (TM_RANGE)
TM_ON = 0
CAL_MODE = 0
Reference
TDA18271HD
I
TM
TM
TM
EP4
2
TM_RANGE
TM_D
TM_RANGE
TM_D
TMVALUE
C-bus
MS
001aah056
© NXP B.V. 2009. All rights reserved.
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