Datasheet

48.7.4 MediaLB System Status Register
Name: MLB_MSS
Offset: 0x020
Reset: 0x00000000
Property: Read/Write
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
Access
Reset
Bit 15 14 13 12 11 10 9 8
Access
Reset
Bit 7 6 5 4 3 2 1 0
SERVREQ SWSYSCMD CSSYSCMD ULKSYSCMD LKSYSCMD RSTSYSCMD
Access
Reset 0 0 0 0 0 0
Bit 5 – SERVREQ Service Request Enabled
Value Description
0
The MediaLB block responds with a “device present” system response.
1
The MediaLB block responds with a “device present, request service” system response if a matching
channel scan system command is detected.
Bit 4 – SWSYSCMD Software System Command Detected in the System Quadlet (cleared by writing a 0)
Set by hardware, cleared by software. Data is stored in the MLB_MSD register for this command.
Bit 3 – CSSYSCMD Channel Scan System Command Detected in the System Quadlet (cleared by writing a 0)
Set by hardware, cleared by software. If the node address specified in Data quadlet matches the value in
MLB_MLBC1.NDA, the device responds either “device present” or “device present, request service” system response
in the next system quadlet.
Bit 2 – ULKSYSCMD Network Unlock System Command Detected in the System Quadlet (cleared by writing a 0)
Set by hardware, cleared by software.
Bit 1 – LKSYSCMD Network Lock System Command Detected in the System Quadlet (cleared by writing a 0)
Set by hardware, cleared by software.
Bit 0 – RSTSYSCMD Reset System Command Detected in the System Quadlet (cleared by writing a 0)
Set by hardware, cleared by software.
SAM E70/S70/V70/V71 Family
Media Local Bus (MLB)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1377