Seagate STT8000A - Manual (Page 51)

ATAPI Interface Chapter 5
STT8000A Product Manual Page 43
Log Select command
Bit
Byte
7 6 5 4 3 2 1 0
0 Operation code (4Ch)
1 Reserved PCR Reserved
2 01(PC) Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 (MSB) Parameter List Length
8 (LSB)
9 Reserved
The PC (Page Control) field is 01, for current values. The Parameter List Length
field specifies the number of data bytes to transfer. If the PCR bit is 1 and the
Parameter List Length is 0, the error counters are all reset (0).
All of the counters defined in the Log Sense command are reset by the Log Select
command and are otherwise only cleared by a power-on (hard) or ATAPI reset.