J2 Connector Signal Descriptions; Pmc Rear I/O Tracking; Jtag Test Header (P38); Table 4-6 J2 Signal Descriptions - GE IMP2B Hardware Reference Manual

4.1.5 J2 Connector Signal Descriptions

Table 4-6 J2 Signal Descriptions

Signal
GPIO_0 to GPIO_3
ETH0_x+/-
ETH1_x+/-
COMx_RX_A
COMx_RX_B
COMx_TX_A
COMx_TX_B
USB2_x+
USB2_x-
USB2_x_PWR
J14-x

4.1.6 PMC Rear I/O Tracking

The PMC site J14 pins 1 to 49 (or 1 to 64 in 'Peripheral Only' or 'Limited Host, Full
PMC User I/O' modes) are not mapped according to the conventional PMC Pn4 to
cPCI J2 scheme. The routing pattern used by the IMP2B is biased towards PMC cards
that use the Pn4 connector pins in pairs (1-3, 2-4, 5-7, 6-8, etc.) The signals are tracked
as 50 Ω single-ended to Ground, not as matched pairs (or triples). Sets of four pairs
(1 to 8, 9 to 16 ... 40 to 48 in Host mode, or 56 to 64 in 'Peripheral Only' or 'Limited
Host, Full PMC User I/O' modes) are matched in length, but no two sets of four pairs
are the same length (e.g. 1 to 8 are all the same length, and 9 to 16 are all the same
length, but 1 to 8 are not the same length as 9 to 16).

4.2 JTAG Test Header (P38)

This 80-way connector gives access to the JTAG test signals. The IMP2AJTAG
daughter card can be fitted to this connector, providing access to VisionProbe II,
CPLD programming or JTAG signals.
Publication No. IMP2B-0HH/5
Description
GPIO bit 0 to bit 3
Gigabit Ethernet channel 0_x differential pairs
10/100 Ethernet channel 1_x differential pairs
RS422 COMx Receive data A (RS232 COMx_RXD)
RS422 COMx Receive data B (RS232 COMx_CTS)
RS422 COMx Transmit data A (RS232 COMx_TXD)
RS422 COMx Transmit data B (RS232 COMx_RTS)
USB2.0 Host Port x Data_plus
USB2.0 Host Port x Data_minus
USB2.0 Host Port x 5V0 switched Power (0.5A max)
J14 PMC User I/O 1:49 (1:64 in Peripheral Only and 'Limited Host, Full PMC I/O' modes)
LINK
IMP2AJTAG Manual, publication number IMP2AJTAG-0HH.
Connectors 47