SAA7108AE PHILIPS [NXP Semiconductors], SAA7108AE Datasheet - Page 75

• Manufacturer Part Number: SAA7108AE
• Description: HD-CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

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Table 33 Explanation to Fig.39
Notes
1. Inverted EP (bit 7); for EP see note 2.
2. Even parity (bit 6) of bits 5 to 0.
3. Odd parity (bit 7) of bits 6 to 0.
NAME
SAV
SDID
DC
IDI1
IDI2
D
D
CS
BC
EAV
n_m
DC_4
ANC header active for DID (subaddress 5DH) <3EH
...
start of active data; see Table 34
sliced data identification: NEP
source identifier
Dword count: NEP
Note that the number of valid bytes inside the stream can be seen in the BC byte.
internal data identification 1: OP
internal data identification 2: OP
Dword number n, byte number m
last Dword byte 4, note: for SAV/EAV framing DC is fixed to 0BH, missing data bytes are filled up; the fill value is A0H
the check sum byte, the check sum is accumulated from the SAV (respectively DID) byte to the D
number of valid sliced bytes counted from the IDI1 byte
end of active data; see Table 34
FF
end of raw VBI line
...
For SAV/EAV mode DC is fixed to 11 Dwords (byte value 4BH)
For ANC mode it is: DC =
according to the chosen text standard.
invalid data
00
or
00
00
EAV
00
(1)
timing reference code
FF
ANC header
00
, EP
FF
00
(2)
, DC5 to DC0. DC describes the number of succeeding 32-bit words:
1
FF
00
(1)
4
(C + n), where C = 2 (the two data identification bytes IDI1 and IDI2) and n = number of decoded bytes
, EP
(3)
(3)
SAV SDID DC
DID SDID DC
, FID (field 1 = 0, field 2 = 1), LineNumber8 to LineNumber3 = Dword 1 byte 1; see Table 34
, LineNumber2 to LineNumber0, DataType3 to DataType0 = Dword 1 byte 2; see Table 34
(2)
Fig.39 Sliced data formats on the I port in 8-bit mode.
, SDID5 to SDID0, freely programmable via I
internal header
internal header
D
IDI1 IDI2 D
IDI1 IDI2 D
1_1
D
1_2
sliced data
sliced data
1_3
1_3
EXPLANATION
D
D
1_4
1_4
D
...
2_1
D
DC_3
and filling data
...
D
DC_4
D
CS
DC_3
2
C-bus subaddress 5EH, bits 5 to 0, e. g. to be used as
D
BC
DC_4
00
ANC data output is only filled up
to the Dword boundary
CS
00
BC
DC_4
...
timing reference code
FF
byte
00
00
EAV
invalid data
00
00
MHB549
...