SSSD 26 Each 128 Byte Sector Track Format

This is an IBM 3740 Standard format.

Field Length Data Clock Value (179X)
Gap I400xFFNA0xFF
Sync I60x00NA0x00
IM10xFC0xD70xFC
GAP III260xFFNA0xFF
Following repeated 26 times to ***
Sync III60x00NA0x00
AM 110xFE0xC70xFE
Cyl #10-76NA0-76
Head #10NA0
Rec #11-26NA1-26
N10NA0
CRC2CRCNA0xF7 (generates both CRC bytes)
GAP II110xFFNA0xFF
Sync II60x00NA0x00
AM 210xFB0xC70xFB
Data1280xE5NA0xE5
CRC2CRCNA0xF7 (generates both CRC bytes)
GAP III270xFFNA0xFF
***
GAP IV~2210xFFNA0xFF
Total Bytes/Sector189
Total Bytes/Track5208

Bill

1504 MST 8 May 2013