GS1500 Gennum Corporation, GS1500 Datasheet - Page 7

• Manufacturer Part Number: GS1500
• Description: Hd-linx (tm) THDTV Serial Digital Deformatter With Anc Fifos
• Manufacturer: Gennum Corporation

1.2 PIN DESCRIPTIONS
GENNUM CORPORATION
PIN NUMBER
86, 87, 88, 89
76, 77, 80,
83, 84, 85,
75, 74, 73
65
66
67
70
71
72
ANC_OUT[9:0]
FF_STA[2:0]
YCS_ERR
CCS_ERR
SAV_ERR
EAV_ERR
LN_ERR
(Continued)
(Continued)
(Continued)
(Continued)
NAME
TEST
Synchronous
Synchronous
Synchronous
Synchronous
Synchronous
Synchronous
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
wrt PCLK_IN
TIMING
Output
Output
Output
Output
Output
Output
Output
TYPE
TEST
7
Status Signal Output. Used to indicate a Line Number error or a
mismatch between the embedded line number and the flywheel
line number when the flywheel is enabled. When LN_ERR is high,
a line number error is detected or the internal flywheel indicates
mismatching line numbers. Refer to Fig. 3 for timing information of
LN_ERR relative to LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT [9:0]) Since LN_ERR depends on the sequence of
line numbers, a line number error will actually cause LN_ERR to
go high for two lines.
Status Signal Output. Indicates a TRS error or a mismatch
between the embedded TRS and the flywheel TRS when the
flywheel is enabled. This signal is set high when an error in the
SAV TRS is detected or when the internal flywheel indicates there
is a mismatching SAV TRS. Refer to Fig. 3 for timing information of
SAV_ERR relative to LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT [9:0]).
Status Signal Output. Indicates a TRS error or a mismatch
between the embedded TRS and the flywheel TRS when the
flywheel is enabled. This signal is set high when an error in the
EAV TRS is detected or when the internal flywheel indicates there
is a mismatching EAV TRS. Refer to Fig. 3 for timing information of
EAV_ERR relative to LUMA (DATA_OUT[19:10]) and CHROMA
(DATA_OUT [9:0]).
Test Pin. Used for test purposes only. This pin must be connected
to GND for normal operation.
Status Signal Output. Indicates a checksum error or a mismatch
between the embedded checksum and the calculated checksum
for the LUMA (DATA_OUT[19:10]) channel. When YCS_ERR is
high, an error in the checksum is detected. Refer to Fig. 18 for
timing information of YCS_ERR relative to LUMA
(DATA_OUT[19:10]).
Status Signal Output. Indicates a checksum error or a mismatch
between the embedded checksum and the calculated checksum
for the CHROMA (DATA_OUT[9:0]) channel. When CCS_ERR is
high, an error in the checksum is detected. Refer to Fig. 18 for
timing information of CCS_ERR relative to CHROMA (DATA_OUT
[9:0]).
Control Signal Output. FF_STA[2:0] is the FIFO status output to
indicate the content level of the internal FIFOs.
FF_STA[2:0]=000: Error flag, FIFO is under run .
FF_STA[2:0]=001: FIFO is empty.
FF_STA[2:0]=010: FIFO is almost empty; 32 bytes filled
FF_STA[2:0]=011: FIFO is ready.
FF_STA[2:0]=100: FIFO is half full.
FF_STA[2:0]=101: FIFO is almost full; 992 bytes filled
FF_STA[2:0]=110: FIFO is full.
FF_STA[2:0]=111: Error flag, FIFO is over run.
When ANC_Y/C is high, FF_STA[2:0] indicates the status of the
LUMA ANC data FIFO. When ANC_Y/C is low, FF_STA[2:0]
indicates the status of the CHROMA ANC data FIFO. See Fig. 6
to Fig. 15 for timing information.
ANC Data Output Bus. ANC_OUT[9] is the MSB and ANC_OUT[0]
is the LSB. When ANC_Y/C is high, ANC_OUT[9:0] presents ANC
data from the LUMA FIFO. When ANC_Y/C is low, ANC_OUT[9:0]
presents ANC data from the CHROMA FIFO.
DESCRIPTION
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