Cypress CYV15G0404DXB manual Level Select Inputs, Jtag Id, Receive Character Status Bits

CYV15G0404DXB

3-Level Select Inputs

Each 3-Level select inputs reports as two bits in the scan register. These bits report the LOW, MID, and HIGH state of the associated input as 00, 10, and 11 respectively.

JTAG ID

The JTAG device ID for the CYV15G0404DXB is ‘0C811069’x

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Receive Character Status Bits

RXSTx[2:0]	Priority	Description
		Normal Status	Receive BIST Status
			(Receive BIST = Enabled)
000	7	Normal character received. The valid Data	BIST Data Compare. Character compared correctly.
		character on the output bus meets all the
		formatting requirements of Data characters
		listed in Table 14.
001	7	Special code detected. The valid special	BIST Command Compare. Character compared
		character on the output bus meets all the	correctly.
		formatting requirements of Special Code
		characters listed in Table 15, but is not the
		presently selected framing character or a
		decoder violation indication.
010	2	Receive Elasticity buffer underrun/overrun	BIST Last Good. Last Character of BIST sequence
		error. The receive buffer was not able to	detected and valid.
		add/drop a K28.5 or framing character
011	5	Framing character detected. This indicates
		that a character matching the patterns identified
		as a framing character (as selected by
		FRAMCHARx) was detected. The decoded
		value of this character is present in the
		associated output bus.
100	4	Codeword violation. The character on the	BIST Last Bad. Last Character of BIST sequence
		output bus is a C0.7. This indicates that the	detected invalid.
		received character cannot be decoded into any
		valid character.
101	1	Loss of sync. This indicates a PLL Out of Lock	BIST Start. Receive BIST is enabled on this channel,
		condition	but character compares have not yet commenced. This
			also indicates a PLL Out of Lock condition, and
			Elasticity Buffer overflow/underflow conditions.
110	6	Running disparity error. The character on the	BIST Error. While comparing characters, a mismatch
		output bus is a C4.7, C1.7, or C2.7.	was found in one or more of the decoded character bits.
111	3	Reserved	BIST Wait. The receiver is comparing characters. but
			has not yet found the start of BIST character to enable
			the LFSR.

Document #: 38-02097 Rev. *B Page 24 of 44

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