参数资料
型号: AC244005
厂商: Microchip Technology
文件页数: 122/150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)
MPLAB ? REAL ICE ? In-Circuit Emulator User’s Guide
The electrical specifications for logic probes are listed in Table 12-2.
TABLE 12-2:
Logic Inputs
LOGIC PROBE ELECTRICAL SPECIFICATIONS
V IH = V DD x 0.7V (min)
V IL = V DD x 0.3V (max)
Logic Outputs
V DD = 5V
V OH = 3.8V min
V DD = 3V
V OH = 2.4V min
V DD = 2.3V
V OH = 1.9V min
V DD = 1.65V
V OH = 1.2V min
V OL = 0.55V max V OL = 0.55V max V OL = 0.3V max
V OL = 0.45V max
12.6
STANDARD COMMUNICATION HARDWARE
For standard emulator communication with a target ( Section 2.3.1 “Standard
Communication” ), use the standard driver board.
To use this type of communication with a header board, you may 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:
Older header boards used a 6-pin (RJ-11) connector instead of an 8-pin
connector, so these headers may be connected directly to the emulator.
For more on available header boards, see the “ Header Board Specification”
(DS51292).
12.6.1
Standard Driver Board
The standard driver board is the main interface to the target processor. It contains the
connections to the high voltage (V PP ), V DD sense lines, and clock and data connections
required for programming and connecting with the target devices.
The V PP high-voltage lines can produce a variable voltage that can swing from 14 to 0
volts to satisfy the voltage requirements for the specific emulation processor.
The V DD sense connection draws very little current from the target processor. The
actual power comes from the MPLAB REAL ICE in-circuit emulation system as the V DD
sense line is used as a reference only to track the target voltage. The V DD connection
is isolated with an optical switch.
The clock and data connections are interfaces with the following characteristics:
? Clock and data signals are in high-impedance mode (even when no power is
applied to the MPLAB REAL ICE in-circuit emulator system)
? Clock and data signals are protected from high voltages caused by faulty targets
systems, or improper connections
? Clock and data signals are protected from high current caused from electrical
shorts in faulty target systems
DS51616B-page 116
Note:
When using the standard driver board, the rate for real-time streaming data
and tracing is limited to 15 MIPS.
? 2008 Microchip Technology Inc.
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