6.1 Configuration Registers
6.1.1
Status Register
The Status register provides the 820x internal status to host. These signals may be
connected to LEDs as status indicators.
Type:
Offset
Read only
x‘0000’
Reserved
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Field Name
Reserved
PCIe_Link
Description
Bits
Reset
31:4
0
Reserved.
PCIe Link Status
3
2
0
0
0
1
PCIe link is down and not operational
PCIe link is up and operational
820x_Err
PKP_Busy
820x Status
0
1
No 820x errors detected
820x error detected
Public Key Processor Status
0
1
PKP Manager and PKP Engine not busy
PKP Manager and PKP Engine busy
1
0
0
0
Note: the host software may only disable the PKP
when the PKP is not busy.
CM_Busy
Channel Manager Status
0
1
Channel Manager not busy
Channel Manager busy
Note: the host software may only disable the
Channel Manager when the Channel Manager is not
busy.
820x – Data Sheet, DS-0157-D
Page130
Hifn Confidential
EXAR [ EXAR CORPORATION ]
