C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 25

IC 8051 MCU 64K FLASH 64TQFP

C8051F023R

Manufacturer Part Number
C8051F023R
Description
IC 8051 MCU 64K FLASH 64TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Datasheets

Specifications of C8051F023R

Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
32
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1035-2
C8051F020/1/2/3
1.3.
JTAG Debug and Boundary Scan
The C8051F020 family has on-chip JTAG boundary scan and debug circuitry that provides non-intrusive, full speed,
in-circuit debugging using the production part installed in the end application, via the four-pin JTAG interface. The
JTAG port is fully compliant to IEEE 1149.1, providing full boundary scan for test and manufacturing purposes.
Silicon Labs' debugging system supports inspection and modification of memory and registers, breakpoints, watch-
points, 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 and SMBus) are stalled when the MCU is halted, during single stepping, or at a
breakpoint in order to keep them synchronized.
The C8051F020DK development kit provides all the hardware and software necessary to develop application code
and perform in-circuit debugging with the C8051F020/1/2/3 MCUs. The kit includes software with a developer's stu-
dio and debugger, an integrated 8051 assembler, and an RS-232 to JTAG serial adapter. It also has a target application
board with the associated MCU installed, plus the RS-232 and JTAG cables, and wall-mount power supply. The
Development Kit requires a Windows 95/98/NT/ME/2000 computer with one available RS-232 serial port. As shown
in Figure 1.8, the PC is connected via RS-232 to the Serial Adapter. A six-inch ribbon cable connects the Serial
Adapter to the user's application board, picking up the four JTAG pins and VDD and GND. The Serial Adapter takes
its power from the application board; it requires roughly 20 mA at 2.7-3.6 V. For applications where there is not suf-
ficient power available from the target system, the provided power supply can be connected directly to the Serial
Adapter.
Silicon Labs’ debug environment is a vastly superior configuration for developing and debugging embedded applica-
tions 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. Silicon Labs' debug environment both increases ease of use and preserves the
performance of the precision analog peripherals.
Figure 1.8. Development/In-System Debug Diagram
Silicon Labs Integrated
Development Environment
WINDOWS 95/98/NT/ME/2000
RS-232
Serial
Adapter
JTAG (x4), VDD, GND
TARGET PCB
VDD
GND
C8051
F020
Rev. 1.4
25

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