MC68HC908JL3ECFA Freescale Semiconductor, MC68HC908JL3ECFA Datasheet - Page 29

• Manufacturer Part Number: MC68HC908JL3ECFA
• Description: IC MCU 4K FLASH 8MHZ 48-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL3ECFA

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 23
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Connectivity: -

2.7 Flash Control Register
The Flash Control Register controls Flash program and erase operations.
HVEN — High Voltage Enable Bit
MASS — Mass Erase Control Bit
ERASE — Erase Control Bit
PGM — Program Control Bit
Freescale Semiconductor
This read/write bit enables high voltage from the charge pump to the memory for either program or
erase operation. It can only be set if either PGM=1 or ERASE=1 and the proper sequence for program
or erase is followed.
This read/write bit configures the memory for mass erase operation or page erase operation when the
ERASE bit is set.
This read/write bit configures the memory for erase operation. This bit and the PGM bit should not be
set to 1 at the same time.
This read/write bit configures the memory for program operation. This bit and the ERASE bit should
not be set to 1 at the same time.
1 = High voltage enabled to array and charge pump on
0 = High voltage disabled to array and charge pump off
1 = Mass erase operation selected
0 = Page erase operation selected
1 = Erase operation selected
0 = Erase operation not selected
1 = Program operation selected
0 = Program operation not selected
Address:
Reset:
Read:
Write:
$FE08
Bit 7
0
0
Figure 2-4. Flash Control Register (FLCR)
= Unimplemented
MC68HC908JL3E Family Data Sheet, Rev. 4
6
0
0
5
0
0
4
0
0
HVEN
3
0
MASS
2
0
ERASE
1
0
Flash Control Register
PGM
Bit 0
0
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