Mode Tape Parameters Page - Seagate STT20000A Product Manual

ATAPI Interface

Mode Tape Parameters Page

STT20000A Product Manual
Description
.Byte
18-19 Reserved
None of the Mode Capabilities and Mechanical Status Page (2Ah) parameters can
be changed.
Byte Description
0 Page Code
Page Length
1
2 Density in Kilo bits per inch
3 Reserved
4 Reserved (Format Fill Byte)
5 BSEG
6,7 SEGTRK
8,9 TRKS
10 MAXSECT
11 MAXCYL
12 MAXHD
13,14 Reserved
15 WDAM,RM,FW (bits 7-5)
This page is used for MFM (Modified Frequency Modulation), or floppy interface
tape formats, such as 2080, 2120, TR1, TR2, TR3, etc. This feature is not available
in the STT20000A.
The following fields are changeable: SEGTRK, TRKS, MAXCYL, and MAXHD.
Value Meaning
00h —
Value Meaning
2Bh Tape Parameters Page
0Eh 14 Bytes of Information
NN Density can imply tape format
00h —
00h Not used, MFM mode is read only
20h Number of Blocks per Segment (32)
NNNN Number of Segments per Track
NN Number of Tracks (per Tape)
80h Max MFM Sector Value (128)
NN Max MFM Cylinder Value
NN Max MFM Head Value
0000h —
00h Not Used, MFM mode is read only
Chapter 5
Page 53