
Lattice Semiconductor
ORCA ORSO82G5 Data Sheet
94
Table 33. FPSC Function Pin Description
Symbol
I/O
Description
Common Signals for Both SERDES Quad A and B
PASB_RESETN
I
Active low reset for the embedded core. All non-SERDES specic registers
(addresses 308***, 309***, 30A***) in the embedded core are not reset.
PASB_TRISTN
I
Active low 3-state for embedded core output buffers. Internally tied high.
PASB_PDN
I
Active low power down of all SERDES blocks and associated I/Os. Internally tied
high.
PASB_TESTCLK
I
Clock input for BIST and loopback test. Internally tied high.
PBIST_TEST_ENN
I
Selection of PASB_TESTCLK input for BIST test. Internally tied high.
PLOOP_TEST_ENN
I
Selection of PASB_TESTCLK input for loopback test. Internally tied high.
PMP_TESTCLK
I
Clock input for microprocessor in test mode. Internally tied high.
PMP_TESTCLK_ENN
I
Selection of PMP_TESTCLK in test mode.Internally tied high.
PSYS_DOBISTN
I
Input to start BIST test. Internally tied high.
PSYS_RSSIG_ALL
O
Output result of BIST test.
SERDES Quad A and B Pins
REFCLKN_A
I
CML reference clock input—SERDES quad A.
REFCLKP_A
I
CML reference clock input—SERDES quad A.
REFCLKN_B
I
CML reference clock input—SERDES quad B.
REFCLKP_B
I
CML reference clock input—SERDES quad B.
REXT_A
—
Reference resistor—SERDES quad A.
REXT_B
—
Reference resistor—SERDES quad B.
REXTN_A
—
Reference resistor—SERDES quad A. A 3.32 K ± 1% resistor must be connected
across REXT_A and REXTN_A. This resistor should handle a current of 300 mΑ.
REXTN_B
—
Reference resistor—SERDES quad B. A 3.32 K ± 1% resistor must be connected
across REXT_B and REXTN_B. This resistor should handle a current of 300 mA.
HDINN_AA
I
High-speed CML receive data input—SERDES quad A, channel A.
HDINP_AA
I
High-speed CML receive data input—SERDES quad A, channel A.
HDINN_AB
I
High-speed CML receive data input—SERDES quad A, channel B.
HDINP_AB
I
High-speed CML receive data input—SERDES quad A, channel B.
HDINN_AC
I
High-speed CML receive data input—SERDES quad A, channel C.
HDINP_AC
I
High-speed CML receive data input—SERDES quad A, channel C.
HDINN_AD
I
High-speed CML receive data input—SERDES quad A, channel D.
HDINP_AD
I
High-speed CML receive data input—SERDES quad A, channel D.
HDINN_BA
I
High-speed CML receive data input—SERDES quad B, channel A.
HDINP_BA
I
High-speed CML receive data input—SERDES quad B, channel A.
HDINN_BB
I
High-speed CML receive data input—SERDES quad B, channel B.
HDINP_BB
I
High-speed CML receive data input—SERDES quad B, channel B.
HDINN_BC
I
High-speed CML receive data input—SERDES quad B, channel C.
HDINP_BC
I
High-speed CML receive data input—SERDES quad B, channel C.
HDINN_BD
I
High-speed CML receive data input—SERDES quad B, channel D.
HDINP_BD
I
High-speed CML receive data input—SERDES quad B, channel D.
SERDES quad A and B Pins
HDOUTN_AA
O
High-speed CML transmit data output—SERDES quad A, channel A.
HDOUTP_AA
O
High-speed CML transmit data output—SERDES quad A, channel A.
HDOUTN_AB
O
High-speed CML transmit data output—SERDES quad A, channel B.