MC68HC908RF2CFA Freescale Semiconductor, MC68HC908RF2CFA Datasheet - Page 118

• 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: -

System Integration Module (SIM)
10.3.2.2 Computer Operating Properly (COP) Reset
10.3.2.3 Illegal Opcode Reset
10.3.2.4 Illegal Address Reset
10.3.2.5 Low-Voltage Inhibit (LVI) Reset
Data Sheet
118
CGMXCLK
CGMOUT
PORRST
OSC1
RST
IAB
The overflow of the COP counter causes an internal reset and sets the COP bit in
the SIM reset status register (SRSR) if the COPD bit in the CONFIG register is at 0.
(See
The SIM decodes signals from the CPU to detect illegal instructions. An illegal
instruction sets the ILOP bit in the SIM reset status register (SRSR) and causes a
reset.
If the stop enable bit, STOP, in the configuration register (CONFIG) is 0, the SIM
treats the STOP instruction as an illegal opcode and causes an illegal opcode
reset.
An opcode fetch from an unmapped address generates an illegal address reset.
The SIM verifies that the CPU is fetching an opcode prior to asserting the ILAD bit
in the SIM reset status register (SRSR) and resetting the MCU. A data fetch from
an unmapped address does not generate a reset.
The low-voltage inhibit module (LVI) asserts its output to the SIM when the V
voltage falls to the V
is set and a chip reset is asserted if the LVIPWRD and LVIRSTD bits in the
CONFIG register are at 0. The RST pin will be held low until the SIM counts 4096
CGMXCLK cycles after V
Section 4. Computer Operating Properly Module
CYCLES
Freescale Semiconductor, Inc.
4096
For More Information On This Product,
Figure 10-7. POR Recovery
System Integration Module (SIM)
CYCLES
Go to: www.freescale.com
32
LVR
voltage. The LVI bit in the SIM reset status register (SRSR)
DD
CYCLES
rises above V
32
LVR
+ H
LVR
$FFFE
. Another 64 CGMXCLK
MC68HC908RF2 — Rev. 4.0
(COP).)
$FFFF
MOTOROLA
DD