MC68HC908RF2CFA Freescale Semiconductor, MC68HC908RF2CFA Datasheet - Page 161

• Manufacturer Part Number: MC68HC908RF2CFA
• Description: IC MCU W/UHF TX 2K FLASH 32LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908RF2CFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: LVD, POR, PWM, RF Mod
• Number Of I /o: 12
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -

13.2.3.2 Break Address Registers
13.3 Monitor Module
13.3.1 Functional Description
MC68HC908RF2 — Rev. 4.0
MOTOROLA
The break address registers contain the high and low bytes of the desired
breakpoint address. Reset clears the break address registers.
This subsection describes the monitor read-only memory (MON). The MON allows
complete testing of the MCU through a single-wire interface with a host computer.
Features include:
Monitor ROM receives and executes commands from a host computer.
13-5
host computer via a standard RS-232 interface.
Register Name and Address: BRKH — $FE0C
Register Name and Address: BRKL — $FE0D
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•
•
•
•
•
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Reset:
Reset:
Read:
Read:
Write:
Write:
shows a sample circuit used to enter monitor mode and communicate with a
Normal user-mode pin functionality
One pin dedicated to serial communication between monitor ROM and host
computer
Standard mark/space non-return-to-zero (NRZ) communication with host
computer
9600 baud communication with host computer when using a 9.8304-MHz
crystal
Execution of code in random-access memory (RAM) or FLASH
FLASH security
FLASH programming
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 13-4. Break Address Registers (BRKH and BRKL)
Bit 15
Bit 7
Bit 7
Bit 7
0
0
Go to: www.freescale.com
Development Support
14
6
0
6
6
0
13
5
0
5
5
0
12
4
0
4
4
0
11
3
0
3
3
0
10
2
0
2
2
0
Development Support
1
9
0
1
1
0
Monitor Module
Figure
Data Sheet
Bit 0
Bit 8
Bit 0
Bit 0
0
0
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