Technical Information C23-SATA • PCIe to SATA RAID Controller Mezzanine Card
© EKF -39- ekf.com
P-EXP
The inter-board connector P-EXP is mounted on bottom of the C23-SATA PCB, with its face aligned
towards the corresponding connector on the CCG-RUMBA. This allows to attach the C23-SATA
mezzanine companion card on top of the CPU carrier board. A suitable board stacker is used in
addition to bridge the gap between the two boards (exactly 4HP distance between PCBs). P-EXP is
used to pass the Low Pin Count I/F to the C23-SATA, besides USB channels and other sideband
signals.
P-EXP Expansion Board Interface (LPC/HD-Audio/USB) 1.27mm Socket 2 x 20 (276.53.040.01)
pin orientation shows
CPU carrier board top view
GND
1
2
+3.3V_CR
*
CLK_33MHZ
3
4
PLTRST#
LPC_AD0
5
6
LPC_AD1
LPC_AD2
7
8
LPC_AD3
LPC_FRAME#
9
10
LPC_DRQ#
GND
11
12
+3.3V_CR
*
SERIRQ
13
14
PME#
SMI#
15
16
CLK_14MHZ
FWH_ID0
17
18
FWH_INIT#
KBD_RST#
19
20
A20GATE
GND
21
22
+5V_CR
*
USB_P2N
1
23
24
USB_P1N
2
USB_P2P
1
25
26
USB_P1P
2
USB_OC#
3
27
28
DBRESET#
SMB_CLK
29
30
SMB_DAT
GND
31
32
+5V_CR
*
PE Port Cfg Bit 1
4
AC'97_SDOUT
33
34
AC'97_SDIN0
AC'97_RST#
35
36
PE Port Cfg Bit 0
4
AC'97_SYNC
AC'97_BITCLK
37
38
AC'97_SDIN1
SPEAKER
39
40
+12V_CR
1
connects to USB Port 6 on CCG-RUMBA
2
connects to USB Port 5 on CCG-RUMBA
3
connects to USB_OC56#on CCG-RUMBA
4
PCI Express port configuration defaults to 4 links by 1 lane (1 link x 1 lane used on the C23-SATA)
*
switched power supply lines from CPU carrier board according to Sx state
2
1
1.27mm
Socket
40
©
EKF 2
76.53.040.0
1 ekf
.co
m
