Intel IXF1104 manual SPI3 Interface Signal Descriptions Sheet 8

IXF1104 4-Port Gigabit Ethernet Media Access Controller

Table 3. SPI3 Interface Signal Descriptions (Sheet 8 of 8)

Signal Name		Ball	Type	Standard	Description
MPHY	SPHY	Designator
					Receive End of Packet.
					REOP indicates the end of a packet when
REOP_0	REOP_0	C16		3.3 V	asserted with RVAL.
	REOP_1	D18	Output		32-bit Multi-PHY mode: REOP_0 covers
	REOP_2	C23		LVTTL	all 32 bits.
	REOP_3	J19			4 x 8 Single-PHY mode: The REOP_0:3
					bits correspond to the RDAT[7:0]_n
					channels.
					Receive Word Modulo:
					32-bit Multi-PHY mode: RMOD[1:0]
					indicates the valid bytes of data in
					RDAT[31:0]. During transmission, RMOD is
					always “00”, except when the last double-
					word is transferred on RDAT[31:0].
					RMOD[1:0] specifies the valid packet data
					bytes on RDAT[31:0] when REOP is
					asserted.
RMOD1		G13		3.3 V	RMOD[1:0]	Valid Bytes of RDAT
	NA		Output		00 = 4 bytes [31:0]
RMOD0		G14		LVTTL
					01 = 3 bytes [31:8]
					10 = 2 bytes [31:16]
					11 = 1 byte [31:24]
					4 x 8 Single-PHY mode: RMOD[1:0] is not
					required.
					RMOD is considered valid only when RVAL
					is simultaneously asserted.
					RENB must be asserted for RMOD[1:0] to
					be valid.
					Receive Start of Transfer.
					32-bit Multi-PHY mode: RSX indicates
					when the in-band port address is present on
					the RDAT bus. When RSX is High and
					RVAL = 0, the value of RDAT[7:0] is the
RSX	NA	E13	Output	3.3 V	address of the receive FIFO to be selected.
				LVTTL	Subsequent data transfers on RDAT are
					from the FIFO specified by this in-band
					address. Values of 0, 1, 2, and 3 select the
					corresponding port. RSX is ignored when
					RVAL is de-asserted.
					4 x 8 Single-PHY mode: RSX is ignored.

Datasheet 45

Document Number: 278757

Revision Number: 007

Revision Date: March 25, 2004