tea5766uk NXP Semiconductors, tea5766uk Datasheet - Page 15

• Manufacturer Part Number: tea5766uk
• Description: Tea5766uk Stereo Fm Radio + Rds
• Manufacturer: NXP Semiconductors

NXP Semiconductors
8. Interrupt handling
TEA5766UK_1
Product data sheet
8.1 Interrupt register
The first two bytes of the I
flags. A flag is set when it is logic 1.
Table 7.
Table 8.
DAVMSK
Fig 5. Flowchart RDS update
DAVFLG
7
7
INTFLAG (INTREQ byte 1) - I
INTMSK (INTREQ byte 2) - I
TESTBIT
6
-
6
LSYNCMSK
Rev. 01 — 22 March 2007
LSYNCFL
set PLL to AF frequency
2
(PLL is AF frequency)
store 'old' PLL setting
wait for PLL to settle
C-bus register contain the interrupt masks and the interrupt
5
wait for IF counter
5
set IF count time
clear LEVFLAG
FRRFLAG = 1
activate mute
clear IFFLAG
BLFLAG = 0
keep mute
level OK
to 2 ms
IF OK
start
true
true
IFFLAG
2
IFMSK
C-bus register byte 1R/byte 0W bit allocation
2
C-bus register byte 0R bit allocation
4
4
false
false
LEVFLAG
LEVMSK
(PLL is old frequency)
reset 'old' PLL setting
wait for PLL to settle
FRRFLAG = 1
3
set LEVFLAG
3
BLFLAG = 0
not mute
001aab462
2
2
-
-
TEA5766UK
Stereo FM radio + RDS
FRRFLAG
FRRMSK
© NXP B.V. 2007. All rights reserved.
1
1
BLFLAG
BLMSK
14 of 59
0
0