LAN9353 Datasheet, PDF (443/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

LAN9353
15.8.21 1588 PORT X CAPTURE INFORMATION REGISTER (1588_CAP_INFO_X)
Offset:
Bank:
160h
0
Size:
32 bits
This read only register provides information about the receive and transmit capture buffers.
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
Description
31:7 RESERVED
6:4 1588 TX Timestamp Count (1588_TX_TS_CNT[2:0])
This field indicates how many transmit timestamps are available to be read. It
is incremented when a PTP packet is transmitted and decremented when the
appropriate 1588 TX Timestamp Interrupt (1588_TX_TS_INT[2:0]) bit is writ-
ten with a 1.
3
RESERVED
2:0 1588 RX Timestamp Count (1588_RX_TS_CNT[2:0])
This field indicates how many receive timestamps are available to be read. It
is incremented when a PTP packet is received and decremented when the
appropriate 1588 RX Timestamp Interrupt (1588_RX_TS_INT[2:0]) bit is writ-
ten with a 1.
Type
RO
RO
RO
RO
Default
-
000b
-
000b
 2015 Microchip Technology Inc.
DS00001925A-page 443