User manual

MPLAB
®
REAL ICE
™
In-Circuit Emulator User’s Guide
DS51616A-page 46 © 2006 Microchip Technology Inc.
7.7.2 High-Speed Receiver Board
A high-speed receiver board assembly is also required when using LVDS connectivity.
This board is a counterpart to the high-speed driver board assembly in the pod. When
the driver is active on the pod, the receiver is active in the receiver board. Alternatively,
when the driver is active on the receiver board, the corresponding receiver is active in
the driver board, providing transmitting and receiving capability at both extremes. The
receiver board contains an 8-pin, 0.100 inch centers header, and is used to connect to
the target board. The receiver board circuit may be absorbed into the target system,
avoiding the usage of the receiver board.
FIGURE 7-4: 8-PIN HEADER PINOUT
FIGURE 7-5: RECEIVER BOARD SCHEMATIC – ICSPDAT
1
2
3
4
5
6
7
8
J1
*future feature
Pin Name Function Pin Name Function
1 Vpp Power 5 ICSPCLK Standard Com Clock
2 Vdd_TGT Power on target 6 AUX Auxiliary
3 GND Ground 7 DAT *Trace Data
4 ICSPDAT Standard Com Data 8 CLK *Trace Clock
Top o f
Target
Board
NDATA_EN
DATA_EN
DATA
AHC1G04-SOT5
SN65MLVD206
4
2
2
1
3
4
6
7
VDD_TAR
DATA_EN
VCCA
VCCB
DIR
A
GND
B
74LVC1T45_SOT-6P
1
6
5
3
4
+3.3V
ICSPDAT
100
LVD+
LVD-
DATAEN+
DATAEN-
SN65MLVD206
2
1
3
4
6
7
100
DATA_EN
4.7K