MC68HC11F1CPU4 Freescale Semiconductor, MC68HC11F1CPU4 Datasheet - Page 54

• Manufacturer Part Number: MC68HC11F1CPU4
• Description: IC MCU 512 EEPROM 4MHZ 80-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC11r

Specifications of MC68HC11F1CPU4

• Core Processor: HC11
• Core Size: 8-Bit
• Speed: 4MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 30
• Program Memory Type: ROMless
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Program Memory Size: -

4.4.1.4 EEPROM Byte Erase
4.4.2 PPROG EEPROM Programming Control Register
PPROG — EEPROM Programming Control
ODD — Program Odd Rows in Half of EEPROM (TEST)
EVEN — Program Even Rows in Half of EEPROM (TEST)
Bit 5 — Not implemented
BYTE — Byte/Other EEPROM Erase Mode
ROW — Row/All EEPROM Erase Mode (only valid when BYTE = 0)
4-16
RESET:
The following is an example of how to erase a single byte of EEPROM and assumes
that index register X contains the address of the byte to be erased.
Bits in PPROG register control parameters associated with EEPROM programming.
Always reads zero
BYTEE
ROWE
0 = Row or bulk erase mode used
1 = Erase only one byte of EEPROM
0 = All 512 bytes of EEPROM erased
1 = Erase only one 16-byte row of EEPROM
ODD
Bit 7
0
LDAB
STAB
STAB
LDAB
STAB
JSR
CLR
LDAB
STAB
STAB
LDAB
STAB
JSR
CLR
EVEN
6
0
Freescale Semiconductor, Inc.
OPERATING MODES AND ON-CHIP MEMORY
#$0E
$103B
0,X
#$0F
$103B
DLY10
$103B
#$16
$103B
0,X
#$17
$103B
DLY10
$103B
For More Information On This Product,
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5
0
Go to: www.freescale.com
BYTE
ROW=1, ERASE=1, EELAT=1, EEPGM=0
Set to ROW erase mode
Store any data to any address in ROW
ROW=1, ERASE=1, EELAT=1, EEPGM=1
Turn on high voltage
Delay 10 ms
Turn off high voltage and set to READ mode
BYTE=1, ROW=0, ERASE=1, EELAT=1, EEPGM=0
Set to BYTE erase mode
Store any data to address to be erased
BYTE=1, ROW=0, ERASE=1, EELAT=1, EEPGM=1
Turn on high voltage
Delay 10 ms
Turn off high voltage and set to READ mode
4
0
ROW
0
3
ERASE
2
0
EELAT
1
0
EEPGM
TECHNICAL DATA
Bit 0
0
MC68HC11F1
$103B