Chapter 5: Connectors
82
Internal Connectors
PTMC Connectors
There are two PTMC slots available, PTMC A and PTMC B. See
Figure 5-3, “PTMC Slot and
Connector Locations,” on page 84
. The default location for a single populated mezzanine card
is the PTMC A slot. PTMC A is designated by connectors J21- J24, which equate to the PTMC
2.15 specification pin mapping J1-J4 respectively. PTMC B is designated by connectors J11-
J14, which equate to the PTMC 2.15 specification pin mapping J1-J4 respectively. Both sets of
PTMC connectors carry all of the appropriate signals for the required operation of PTMC
Configuration 2, which is comprised of TDM and RMII on J3 and user defined I/O on J4 pined.
The J4 user I/O is pin mapped for PTMC Configuration 5 and is mapped for 10/100/1G
Ethernet. See
Table 5-4, “Generic Signals on PTMC J11/J21 and J12/J23 Connectors,”
below.
The local PCI interface signals to the PTMC slots originate from the secondary PCI bus. A PCI
bus controller is provided by a PLX PCI6254 dual PCI bridge. The CPC324 acts as the host
processor and operates with PTMC mezzanine and PMC Processor cards configured as non-
monarchs. The CPC324 supports one load per PTMC slot but does not support optional
second PCI agents.
Table 5-4:
Generic Signals on PTMC J11/J21 and J12/J23 Connectors
Pin
J11/J21 Signal
Pin
J11/J21 Signal
Pin
J12/J22 Signal
Pin
J12/J22 Signal
1
(TCK)
1
2
-12V
1
+12V
2
TRST#
1
3
GND
4
INTA#
2
3
TMS
1
4
TDO (tied to TDI)
1
5
(INTB#)
6
(INTC#)
5
TDI (tied to TDO)
1
6
GND
7
PRESENT#
3
8
5V
7
GND
8
(PCI-Reserved)
9
(INTD#)
10
(PCI-Reserved)
9
(PCI-Reserved)
10
(PCI-Reserved)
11
GND
12
(3.3Vaux)
11
BUSMODE2#
4
12
3.3V
13
PCICLK
14
GND
13
PCI_RST#
14
BUSMODE3#
4
15
GND
16
GNT#
15
3.3V
16
BUSMODE4#
4
17
REQ#
18
5V
17
(PME#)
18
GND
19
V3V (VI/O)
20
AD[31]
19
AD[30]
20
AD[29]
21
AD[28]
22
AD[27]
21
GND
22
AD[26]
23
AD[25]
24
GND
23
AD[24]
24
3.3V
25
GND
26
C/BE3#
25
IDSEL
26
AD[23]
27
AD[22]
28
AD[21]
27
3.3V
28
AD[20]
29
AD[19]
30
5V
29
AD[18]
30
GND
31
V3V (VI/O)
32
AD[17]
31
AD[16]
32
C/BE[2]#
33
FRAME#
34
GND
33
GND
34
IDSELB
35
GND
36
IRDY#
35
TRDY#
36
3.3V
37
DEVSEL#
38
5V
37
GND
38
STOP#
39
GND
40
LOCK#
39
PERR#
40
GND
41
(PCI-Reserved)
42
(PCI-Reserved)
41
3.3V
42
SERR#
43
PAR
44
GND
43
C/BE[1]#
44
GND
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