Reference Guide

Chapter 4 SCSI Commands
MODE SELECT (6) / (10) Command (15h / 55h)
DLT-S4 Interface Reference Guide 128
Figure 69 Fibre Channel —
Port Control MODE SELECT
Page — Data Format
Table 78 Fibre Channel —
Port Control MODE SELECT
Page — Field Descriptions
Bit
7 6 5 4 3 2 1 0
Byte
0 PS (0) SPF (0) Page Code (19h)
1 Page Length (06h)
2 Reserved Protocol Identifier (0h)
3 DTFD (0) PLPB (1) DDIS (1) DLM (0) RHA (0) ALWLI (0) DTIPE (0) DTOLI (0)
4 — 5 Reserved
6 Reserved RR_TOV Units (5h)
7 Resource Recovery Time-out (RR_TOV) (1Eh)
Field Description
PS Parameters Savable. Must be set to 0.
SPF SubPage Format. Always set to 0. Indicates that this page uses the page_0 page
format.
Page Code Identifies the type of
MODE SELECT page being transferred. A value of 19h identifies
this as the Port Control Page.
Page Length Indicates the number of bytes in the page, excluding bytes 0 and 1. The length is
returned in
MODE SENSE commands and must subsequently be set to the same value
when performing
MODE SELECT.
Protocol
Identifier
A value of 0h indicates that this mode page applies to an FCP-2 port (see the Fibre
Channel Protocol – 2 (FCP–2) standard).