Ethernet Switch Configuration; Table 7-1: Register Map For Ethernet Switches 'A' And 'B' (Factory Use Shaded) - Focal 922-DSLH User Manual

7.5 Ethernet Switch Configuration

On power up, the switch operational parameters are immediately configured via pull-up and pull-down resistors.
Registers within the two Ethernet switch ICs (switch A and B) can also be user configured over any copper
Ethernet port using Modbus TCP to override the default configuration.
On power-up, the Ethernet switches A and B are configured as follows:

Auto-negotiation with auto MDI/MDI-X on all five user copper ports

Broadcast frames limited to 0.05% throughput or 4 frames per 50 ms.

Maximum frame length: 1536 bytes

Share buffer memory based on port activity

Priority disabled
The registers shaded in Table 7-1
factory use only and should not be modified. Changing them could disable critical
card functions. All other register changes could also affect some of the card
functionality. If this occurs accidentally, the switches can be reverted to default
condition with a power cycle.

Table 7-1: Register Map for Ethernet Switches 'A' and 'B' (Factory Use Shaded)

Offset
Decimal Hex
0-1 0x00-0x01
2-11 0x02-0x0B
12-15 0x0C-0x0F
16-29 0x10-0x1D
30-31 0x1E-0x2F
32-45 0x20-0x2D
46-47 0x2E-0x2F
48-61 0x30-0x3D
62-63 0x3D-0x3F
64-77 0x40-0x4D
78-79 0x4E-0x4F
80-93 0x50-0x5D
94-95 0x5E-0x5F
96-103 0x60-0x67
104-109 0x68-0x6D
110-111 0x6E-0x6F
112-120 0x70-0x78
*
Refer to Micrel datasheet KSZ8895FQXIA for more detailed register description.
The Ethernet switch registers described in the table above can be accessed via Modbus registers
40100-40227 (switch A) and 40228-40355 (switch B). See section 10.0 for more details.
Focal Technologies Corporation
A Moog Inc. Company
Switch 'A'
Port 1A (SWA-SWB) Control Registers
Port 1A (SWA-SWB) Status Registers
Port 2A (CU1) Control Registers
Port 2A (CU1) Status Registers
Port 3A (uC1) Control Registers
Port 3A (uC1) Status Registers
Port 4A Control Registers
Port 4A Status Registers
Port 5A (uC DIAG / MII) Control Registers
Port 5A (uC DIAG / MII) Status Registers
Model 922-DSLH – User Manual
Error! Reference source not found.
Description*
Chip ID Registers
Global Control Registers
Reserved
Port 1B (uC2) Control Registers
Port 1B (uC2) Status Registers
Port 2B (CU2) Control Registers
Port 2B (CU2) Status Registers
Port 3B (SFP) Control Registers
Port 3B (SFP) Status Registers
Port 4B (DSL DC) Control Registers
Port 4B (DSL DC) Status Registers
Port 5B (SWB-SWA) Control Registers
Port 5B (SWB-SWA) Status Registers
TOS Priority Control Registers
MAC Address Registers
Indirect Access Control Registers
Indirect Data Registers
Document No. 922-0677-00, Rev 1.0
are intended for
Switch 'B'
Page 7-5