saa7207h NXP Semiconductors, saa7207h Datasheet - Page 9

• Manufacturer Part Number: saa7207h
• Description: Reed Solomon Decoder Ic
• Manufacturer: NXP Semiconductors

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Philips Semiconductors
Table 5 Read (R/W = 1)
Notes
1. Input data bits for Port 5 to Port 0.
2. When S = 0 it is in sync status; when S = 1 it is in no sync status.
The CorrCount is an estimation for the Byte Error Rate (BER) of the channel. This estimation is good for a high
signal-to-noise ratio (SNR); then all uncorrected blocks will not have more than 9 errors. The CorrCount is incremented
by 1 for each corrected byte. Each uncorrectable or unsychronized block will increment the CorrCount by 9. The
CorrCount will saturate at ‘7FFFFFH’ so that value actually means ‘counter overflow’.
A CorrCount reset is caused by the following:
1996 Jul 17
A hardware or software reset
Reading the 4th byte.
Reed Solomon decoder IC
2nd byte
3rd byte
4th byte
1st byte
BYTE
DATA1
DATA0
VALI
CLK
S
0
(2)
SLOT 0
LOGIC LEVEL
SLOT 1
Fig.3 Input Interface.
0
9
T symbol
SLOT 2
input data Port 5 to Port 0
SLOT 3
bits 22 to 16 of CorrCount
bits 15 to 8 of CorrCount
bits 7 to 0 of CorrCount
DESCRIPTION
SLOT 4
MBH318
Product specification
SAA7207H
(1)