MC68HC908AS60CFN Freescale Semiconductor, MC68HC908AS60CFN Datasheet - Page 79

• Manufacturer Part Number: MC68HC908AS60CFN
• Description: IC MCU 60K FLASH 8MHZ 52-PLCC
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AS60CFN

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8.4MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 40
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 15x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 52-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.4 FLASH Control Register
MC68HC908AS60 — Rev. 1.0
NOTE:
Address:
Programming tools are available from Motorola. Contact a local Motorola
representative for more information.
A security feature prevents viewing of the FLASH contents.
The FLASH-2 control register (FLCR2) controls FLASH-2 program,
erase, and margin read operations.
FDIV1 — Frequency Divide Control Bit
FDIV0 — Frequency Divide Control Bit
BLK1 — Block Erase Control Bit
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
Reset:
Read:
Write:
This read/write bit together with FDIV0 selects the factor by which the
charge pump clock is divided from the system clock. See
Charge Pump Frequency
This read/write bit together with FDIV1 selects the factor by which the
charge pump clock is divided from the system clock. See
Charge Pump Frequency
This read/write bit together with BLK0 allows erasing of blocks of
varying size. See
available block sizes.
Freescale Semiconductor, Inc.
For More Information On This Product,
$FE11
FDIV1
Bit 7
0
Figure 5-1. FLASH-2 Control Register (FLCR2)
Go to: www.freescale.com
FDIV0
FLASH-2 Memory
6
0
5.6 FLASH Erase Operation
BLK1
5
0
Control.
Control.
BLK0
4
0
HVEN
3
0
MARGIN
2
0
for a description of
FLASH Control Register
FLASH-2 Memory
ERASE
1
0
Technical Data
(1)
5.5 FLASH
5.5 FLASH
PGM
Bit 0
0