Acromag XMCAP2022, User Manual

Page: 22 / 34

AcroPack Series XMCAP2022 XMC Carrier Board
- 22 -
and only supplied when The Present* Pin (45) of the AcroPack module is seen to
be grounded.
4. All +3.3Vaux power pins are changed to 3.3V power.
5. The SM bus signals SMB_CLK and SMB_DATA are used to communicate with a
CPLD on the carrier that reports slot ID. These signals will be under the control of
the AcroPack module.
XMC/PCIe Bus Connections
Table4 indicates the pin assignments for the PCIe bus signals at the XMC VITA
42.3 connector P15.
Refer to the PCI Express bus specification for additional information on the
PCI Express bus signals.
Table 4 XMC/PCIe Bus P15 CONNECTIONS
A B C D E F
1 PETX0_P PETX0_N +3.3V PETX1_P PETX1_N VPWR
2 GND GND No Connect GND GND PERST*
3 PETX2_P PETX2_N +3.3V PETX3_P PETX3_N VPWR
4 GND GND TCK GND GND No Connect
5 PETX4_P PETX4_N +3.3V PETX5_P PETX5_N VPWR
6 GND GND TMS GND GND +12V_AUX (NC)
3
7 PETX6_P PETX6_N +3.3V PETX7_P PETX7_N VPWR
8 GND GND TDI GND GND -12V_AUX (NC)
3
9 No Connect No Connect No Connect No Connect No Connect VPWR
10 GND GND TDO GND GND GA0
11 No Connect No Connect No Connect No Connect No Connect VPWR
12 GND GND GA1 GND GND GND
13 No Connect No Connect +3.3V_AUX (NC)
2
No Connect No Connect VPWR
14 GND GND GA2 GND GND No Connect
15 No Connect No Connect No Connect No Connect No Connect VPWR
16 GND GND MVMRO* GND GND No Connect
17 No Connect No Connect No Connect No Connect No Connect No Connect
18 GND GND No Connect GND GND No Connect
19 REFCLK_P REFCLK_N No Connect No Connect No Connect No Connect
Notes:
1. Asterisk (*) is used to indicate an active-low signal.
2. +3.3Vaux power is not used by the carrier. Contact Acromag to 3.3Vaux
power to AcroPack modules and/or ID EEPROM. The carrier pr3.3V
power to the modules.
3. +12V_AUX and -12V_AUX are not used by the carrier. +12V and -12V are created
from +3.3V to support XMC carriers that do not supply these voltages.
JTAG Programming/Debug Connector
JTAG programming/debug is supported through the JTAG signals of the XMC
P15 connector. An alternate header is supplied if JTAG is not available from
the XMC carrier (See reference designator J3 located on bottom side of