参数资料
型号: AC244005
厂商: Microchip Technology
文件页数: 125/150页
文件大小: 0K
描述: KIT MPLAB REAL ICE ISOLATOR
标准包装: 1
系列: MPLAB®
附件类型: 隔离器
适用于相关产品: MPLAB?ICE,AC244002
产品目录页面: 658 (CN2011-ZH PDF)
Hardware Specification
12.7
HIGH-SPEED COMMUNICATION HARDWARE
For high-speed emulator communication with a target ( Section 2.3.2 “High-Speed
Communication” ), use the Performance Pak. The Performance Pak includes:
To use this type of communication with a header board, you will need a device-specific
Processor Pak, which includes an 8-pin connector header board containing the desired
ICE/ICD device and a standard adapter board (8-pin to 6-pin connection.)
Note:
You will not need the standard adapter board for high-speed communica-
tions. Instead, you will plug the 8-pin connector end of the high-speed
receiver board directly into the 8-pin connector of the header board.
For more on available header boards, see the “ Header Board Specification”
(DS51292).
12.7.1
High-Speed Driver Board
The high-speed driver board consists of two separate multipoint LVDS (Low Voltage
Differential Signal) transmitters and receivers for clock and data. Multipoint LVDS
requires 100 ohm terminations at each driver output and receiver input, per the
standard, and multipoint configurations type 2 receivers are used, as these are
intended for control signals or where fail-safe provisions are needed. Even though the
standard allows for any combination of drivers, receivers and/or transceivers of up to
32 on the line, only two will be used. The driver board has a port expansion which is
controlled by an I 2 C? interface for sending/receiving status information to/from the
emulator. The high-speed driver board assembly is inserted into the emulator pod via
the card guide.
Note:
Data rates up to 40 MIPS are possible.
FIGURE 12-4:
DUAL 8-PIN PINOUT
J3
J2
1
3 5 7
1
3 5 7
Bottom of
Receiver Board
2
4 6
8
2
4 6
8
J3 Pinout
Pin
1
2
3
4
Name
DATAEN+
DATAEN–
CLKEN+
USPID+
Function
Std Data Enable +
Std Data Enable –
Std Clock Enable +
*Serial Data +
Pin
5
6
7
8
Name
USPID–
CLKEN–
USPIC+
USPIC–
Function
*Serial Data –
Std Clock Enable –
*Serial Clock +
*Serial Clock –
J2 Pinout
Pin
1
2
3
4
Name
LVC+
LVD–
LVC+
V DD
Function
LV Std Data +
LV Std Data –
LV Std Clock +
Power
Pin
5
6
7
8
Name
GND
LVC–
V DD _TGT
V PP _TGT
Function
Ground
LV Std Clock –
V DD on target
V PP on target
? 2008 Microchip Technology Inc.
DS51616B-page 119
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