MC9S08AC48MFDE Freescale Semiconductor, MC9S08AC48MFDE Datasheet - Page 60

• Manufacturer Part Number: MC9S08AC48MFDE
• Description: MCU 8BIT 48K FLASH 48-QFN
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08AC48MFDE

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 48-QFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Chapter 4 Memory
60
KEYACC
Reset
Field
5
W
R
Enable Writing of Access Key — This bit enables writing of the backdoor comparison key. For more detailed
information about the backdoor key mechanism, refer to
0 Writes to $FFB0–$FFB7 are interpreted as the start of a FLASH programming or erase command.
1 Writes to NVBACKKEY ($FFB0–$FFB7) are interpreted as comparison key writes.
0
0
7
Reads of the FLASH return invalid data.
= Unimplemented or Reserved
0
0
6
Figure 4-6. FLASH Configuration Register (FCNFG)
Table 4-9. FCNFG Field Descriptions
KEYACC
MC9S08AC60 Series Data Sheet, Rev. 2
0
5
0
0
4
Description
Section 4.5,
3
0
0
“Security.”
0
0
2
Freescale Semiconductor
0
0
1
0
0
0