SAA7113 Philips Semiconductors, SAA7113 Datasheet - Page 33

• Manufacturer Part Number: SAA7113
• Description: 9-bit video input processor
• Manufacturer: Philips Semiconductors

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Table 17 Sliced data format on the 8-bit VPO-bus (data types 0 to 5 and 8 to 14)
Table 18 Explanation to Table 17
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
DLNn
DLHn
EAV
BLANKING
PERIOD
80
start of active data; see Tables 5 to 7
sliced data identification: NEP
source identifier
Dword count: NEP
information for SAA7113H applications.
DC describes the number of succeeding 32-bit words:
DC =
standard. As the sliced data are transmitted nibble wise, the maximum number of bytes transmitted (NBT) starting at IDI1 results to:
NBS = (DC
DC can vary between 1 and 11, depending on the selected data type.
Note that the number of bytes actually transmitted can be less than NBT for two reasons:
1. result of DC would result to a non-integer value (DC is always rounded up)
2. standard not recognized (wrong standard or poor input signal)
internal data identification 1: OP
internal data identification 2: OP
sliced data LOW nibble, format: NEP
sliced data HIGH nibble, format: NEP
end of active data; see Tables 5 to 7
10
1
FF
REFERENCE CODE
4
(C + n), where C = 2 (the two data identification bytes IDI1 and IDI2) and n = number of decoded bytes according to the chosen text
00
TIMING
8)
00
2
(1)
, EP
SAV
(2)
, DC5 to DC0; DC is inserted for software compatibility reasons to SAA7112, but does not represent any relevant
(1)
SDID
, EP
(3)
(3)
INTERNAL HEADER
, FID (field 1 = 0, field 2 = 1), LineNumber8 to LineNumber3
, LineNumber2 to LineNumber0, DataType3 to DataType0; see Table 4
(2)
(1)
(1)
, SDID5 to SDID0, freely programmable via I
, EP
DC
, EP
(2)
(2)
IDI1
, D3 to D0, 1, 1
, D7 to D4, 1, 1
IDI2
DLN1
EXPLANATION
DHN1
SLICED DATA
...
2
DLNn
C-bus subaddress 5EH, D5 to D0, e. g. to be used as
DHNn
FF
REFERENCE CODE
00
TIMING
00
EAV
80
BLANKING
PERIOD
10
...