LAN9353 Datasheet, PDF (473/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
15.8.43 1588 PORT X TX DELAY_REQ EGRESS TIME SECONDS REGISTER
(1588_TX_DREQ_SEC_X)
Offset:
Bank:
178h
2
Size:
32 bits
This register combined with the 1588 Port x TX Delay_Req Egress Time NanoSeconds Register (1588_TX-
_DREQ_NS_x) contains the egress time of the last Delay_Req message. The contents of this field are normally only
used to insert the egress time into received Delay_Resp messages.
Note:
Port and GPIO registers share a common address space. Port registers are selected by the Bank Select
(BANK_SEL[2:0] in the 1588 Bank Port GPIO Select Register (1588_BANK_PORT_GPIO_SEL). The port
accessed (“x”) is set by the Port Select (PORT_SEL[1:0]) field.
BITS
31:4
3:0
DESCRIPTION
RESERVED
Timestamp Seconds (TS_SEC)
This field contains the seconds portion of the transmit egress time.
TYPE
RO
RO
DEFAULT
-
0h
 2015 Microchip Technology Inc.
DS00001925A-page 473