HIPPI
S2020/S2021 SOURCE DEVICE STATE MACHINES
Figure 8. S2021 Host Data/FIFO SM State Transition Diagram
"CERR"
OVERFLOW
RESET
"CERR"
0011
{ILLINPT}
100
14
0010
{DISCON0}
101
0011
{HSEQER}
100
0
13
"CERR"
"HERR" +
"GLRC" +
"DXFR"
"HIFL"
"IDLG"
"DISC"
"HERR" +
"DXFR"
"HERR" +
"GLRC" +
"DXFR"
"HIFL" + "CERR"
0010
{DISCON1}
110
0000
{IDLE}
011
4
0010
{IFIELD}
001
3
1
"IDLG"
"DISC"
"IDLG"
"HIFL"
"GLRC"
"HIFL"
"GLRC"
"HIFL" + "CERR"
"DISC"
111
"IDLG" +
"CERR"
"IDLG" + "HERR"
1010
{BGNPKT}
011
5
0010
{DISCON2}
2
"DISC"
"DISC"
"DISC"
"HERR" +
"GLRC" +
"DXFR"
"CERR"
"GLRC"
"DISC"
1000
"GLRC"
"HERR"
"GLRC"
011
{IBSTGP}
7
1000
{PKTNBST}
011
6
"HIFL" + "CERR"
"HIFL" + "CERR"
"IDLG" + "HERR"
"GLRC"
"IDLG"
From
10, 12
"DISC"
"IDLG"
To 12
"HIFL" +
"CERR"
"DXFR"
To 8
"DXFR"
To 8
"GLRC"
From 11
"DISC"
From
9, 10,
11, 12
"HIFL" + "CERR"
From 11, 12
From 11, 12
From 8,
9, 10
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