User's Manual

PMAC2 PCI Lite Hardware Reference Manual – Preliminary Documentation
16 PMAC2 PCI Lite Jumper Descriptions
E13 - E14: Encoder Sample Clock Direction Control
E Point and
Physical Layout
Location Description Default
E13
D1 Remove jumper to output SCLK generated in first
ASIC on SCLK_12 and SCLK_34, or to control
direction by software.
Jump pins 1 to 2 to input SCLK signal for first ASIC
on SCLK_34 and output this signal on SCLK_12.
Jump pins 2 to 3 to input SCLK signal for first ASIC
on SCLK_12 and output this signal on SCLK_34.
No jumper installed
E14
D2 Remove jumper to output SCLK generated in second
ASIC on SCLK_56 and SCLK_78, or to control
direction by software.
Jump pins 1 to 2 to input SCLK signal for second
ASIC on SCLK_78 and output this signal on
SCLK_56.
Jump pins 2 to 3 to input SCLK signal for second
ASIC on SCLK_56 and output this signal on
SCLK_78.
No jumper installed
Note: E14 is installed only if Option 1 has been ordered.
E17 - E18: Serial Port Type Selection
E Point and
Physical layout
Location Description Default
E17
C1 Connect pins 1 and 2 to use the RS-232 port on the J5
connector.
Connect pins 2 and 3 to use the RS-422 port on the
J5A connector.
Jumper installed in 1-2
position
E18
C1 Connect pins 1 and 2 to use the RS-232 port on the J5
connector.
Connect pins 2 and 3 to use the RS-422 port on the
J5A connector.
Jumper installed in 1-2
position
Serial Port Choice: Because both RS-232 and RS-422 ports are always provided, jumpers must be set correctly to use
the port of choice. Jumpers E17 and E18 must connect pins 1 and 2 to use the RS-232 port on the J5 connector; to use
the RS-422 port on the J5A connector, they must connect pins 2 and 3.