C8051F012 View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

C8051F012

Mixed-Signal 32KB ISP FLASH MCU Family

Unspecified 

C8051F000/1/2/5/6/7

C8051F010/1/2/5/6/7

PRELIMINARY

1.3. JTAG Debug and Boundary Scan

The C8051F000 family has on-chip JTAG and debug circuitry that provide non-intrusive, full speed, in-circuit

debug using the production part installed in the end application using the four-pin JTAG I/F. The JTAG port is

fully compliant to IEEE 1149.1, providing full boundary scan for test and manufacturing purposes.

Cygnal’s debug system supports inspection and modification of memory and registers, breakpoints, watchpoints, a

stack monitor, and single stepping. No additional target RAM, program memory, timers, or communications

channels are required. All the digital and analog peripherals are functional and work correctly while debugging. All

the peripherals (except for the ADC) are stalled when the MCU is halted, during single stepping, or at a breakpoint

in order to keep them in sync.

The C8051F000DK, C8051F005DK, C8051F010DK, and C8051F015DK are development kits with all the

hardware and software necessary to develop application code and perform in-circuit debug with the C8051F000/1/2,

F005/6/7, F010/1/2, and F015/6/7 MCUs respectively. The kit includes software with a developer’s studio and

debugger, an integrated 8051 assembler, and an RS-232 to JTAG protocol translator module referred to as the EC. It

also has a target application board with the associated MCU installed and a large prototyping area, plus the RS-232

and JTAG cables, and wall-mount power supply. The Development Kit requires a Windows 95/98/Me/NT computer

with one available RS-232 serial port. As shown in Figure 1.7, the PC is connected via RS-232 to the EC. A six-

inch ribbon cable connects the EC to the user’s application board, picking up the four JTAG pins and VDD and

GND. The EC takes its power from the application board. It requires roughly 20mA at 2.7-3.6V. For applications

where there is not sufficient power available from the target board, the provided power supply can be connected

directly to the EC.

This is a vastly superior configuration for developing and debugging embedded applications compared to standard

MCU Emulators, which use on-board “ICE Chips” and target cables and require the MCU in the application board to

be socketed. Cygnal’s debug environment both increases ease of use and preserves the performance of the precision

analog peripherals.

Figure 1.7. Debug Environment Diagram

WINDOWS 95/98/Me/NT

CYGNAL Integrated

Development Environment

RS-232

EC

JTAG (x4), VDD, GND

VDD GND

TARGET PCB

C8051

F005

4.2001; Rev. 1.3

CYGNAL Integrated Products, Inc.  2001

Page 15

Share Link: