LAN9353 Datasheet, PDF (232/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
10.6.1 PORT 1 MANUAL FLOW CONTROL REGISTER (MANUAL_FC_1)
Offset:
1A0h
Size:
32 bits
This read/write register allows for the manual configuration of the switch Port 1 flow control. This register also provides
read back of the currently enabled flow control settings, whether set manually or Auto-Negotiated. Refer to Section
10.5.1, "Flow Control Enable Logic" for additional information.
Note: The flow control values in the PHY’s Auto-Negotiation Advertisement Register are not affected by the values
of this register.
Bits
Description
31:7 RESERVED
6
Port 1 Backpressure Enable (BP_EN_1)
This bit enables/disables the generation of half-duplex backpressure on
switch Port 1.
0: Disable backpressure
1: Enable backpressure
5
Port 1 Current Duplex (CUR_DUP_1)
This bit indicates the actual duplex setting of switch Port 1.
0: Full-Duplex
1: Half-Duplex
4
Port 1 Current Receive Flow Control Enable (CUR_RX_FC_1)
This bit indicates the actual receive flow setting of switch Port 1.
0: Flow control receive is currently disabled
1: Flow control receive is currently enabled
3
Port 1 Current Transmit Flow Control Enable (CUR_TX_FC_1)
This bit indicates the actual transmit flow setting of switch Port 1.
0: Flow control transmit is currently disabled
1: Flow control transmit is currently enabled
2
Port 1 Full-Duplex Receive Flow Control Enable (RX_FC_1)
When the MANUAL_FC_1 bit is set or Auto-Negotiation is disabled, this bit
enables/disables the detection of full-duplex Pause packets on switch Port 1.
0: Disable flow control receive
1: Enable flow control receive
1
Port 1 Full-Duplex Transmit Flow Control Enable (TX_FC_1)
When the MANUAL_FC_1 bit is set or Auto-Negotiation is disabled, this bit
enables/disables full-duplex Pause packets to be generated on switch Port 1.
0: Disable flow control transmit
1: Enable flow control transmit
Type
RO
R/W
RO
RO
RO
R/W
R/W
Default
-
Note 4
Note 5
Note 5
Note 5
Note 6
Note 6
DS00001925A-page 232
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