
IBM3209K3114
IBM Packet Routing Switch Serial Interface Converter
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I/O Definition and Package Pin Assignment
Page 106 of 142
prssi.01
July 12, 2000
Table 28: Miscellaneous External Signals
Name
Input/
Output
Level
Description
Notes
POR
Input
LVTTL
Creates a hardware reset of the converter (flush LSSD).
1
Slot_IDN_4...
Slot_IDN_0
Input
LVTTL
Hardware Slot ID. These bits are directly mapped to the SlotID Con-
trol Register @A0 bits 20-16.
1
APAN_X
Output
LVTTL
Adapter Port Available (APA) signal sent to the switch board X. This
bit is directly mapped, with inversion, from the X Adapter Port Avail-
able Register @08 bit 19
APAN_Y
Output
LVTTL
Adapter Port Available (APA) signal sent to the switch board Y. This
bit is directly mapped from the Y Adapter Port Available Register
@28 bit 19
FPAN_X
Input
LVTTL
Fabric Port Available (FPA). This bit is directly mapped to the XFPA
Control Register @88 bit 2.
1
FPAN_Y
Input
LVTTL
Fabric Port Available (FPA). This bit is directly mapped to the YFPA
Control Register @88 bit 6.
1
SWITCH_X_IN
SERVICE
Input
LVTTL
Fabric X in service selects which plane/clock is currently in use. This
bit is directly mapped, with inversion, to the XInService Control Reg-
ister @88 bit 0.
1
SWITCH_Y_IN
SERVICE
Input
LVTTL
Fabric Y in service selects which plane/clock is currently in use. This
bit is directly mapped, with inversion, to the YInService Control Reg-
ister @88 bit 4.
1
SWITCH_X_PR
ESENT
Input
LVTTL
Fabric X detects that the switch board has been inserted into the
backplane and that a switch clock should be present. This bit is
directly mapped to the switch present Control Register @88 bit 3.
1
SWITCH_Y_PR
ESENT
Input
LVTTL
Fabric Y detects when a switch board is inserted into the backplane
and that a switch clock should be present. This bit is directly mapped
to the switch present Control Register @88 bit 7.
1
1. An internal pull-up resistor forces the inactive state.
Figure 36: Switch Present Detection
v
cc
GND
Switch Present
Switch Board
Backplane
v
cc
1 K
14 K
IBM Packet Routing Switch
Serial Interface Converter
RCV
10 K