tea5766uk NXP Semiconductors, tea5766uk Datasheet - Page 27

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

NXP Semiconductors
TEA5766UK_1
Product data sheet
Fig 12. DAV-C timing diagram case 2, late read of BL and BP register
(1) Two new blocks have arrived in the BL and BP register.
(2) Instant copy C
(3) Instant copy of A
(4) DAVFLG not cleared as no read is performed.
(5) DAVFLG is reset when first new block would have been copied to BL register.
(6) DAVFLG is set when second new block is in decoder buffer.
(7) No read on INTX, B
(8) Dashed line shows what would happen if no read occurred at (a). DOVF bit set until the next
(9) Two new blocks have arrived in BL/BP (C
action.
read of BP register, however D
buffer. Hence DOVF is set again. To prevent this, an extra read must be performed after
reading (a).
overflow) bit
read access
DOVF (data
BP register
BL register
DAVFLG
(case 2)
(case 2)
INTX
1
from decoder buffer to BL and BL to BP just before D
A
2
Rev. 01 — 22 March 2007
1
from decoder buffer to BL and BL to BP.
1
D
C
will be lost.
(7)
0
0
(1)
t
21.9 ms
p
= 10 ms
B
1
A
D
1
0
1
and A
(4)
2
would be lost.
C
(5)
1
1
, D
1
) and a new block (A
(6)
D
1
(a)
(2)
C
A
t
1
1
read
(8)
A
2
2
) has entered the decoder
TEA5766UK
1
Stereo FM radio + RDS
decoded due to read
(9)
D
C
1
1
© NXP B.V. 2007. All rights reserved.
B
2
(3)
001aaf448
A
D
2
1
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