MC68HC11K1CFN4 Freescale Semiconductor, MC68HC11K1CFN4 Datasheet - Page 100

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MC68HC11K1CFN4

Manufacturer Part Number
MC68HC11K1CFN4
Description
IC MCU 640 EEPROM 4MHZ 84-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheets

Specifications of MC68HC11K1CFN4

Core Processor
HC11
Core Size
8-Bit
Speed
4MHz
Connectivity
SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Type
ROMless
Eeprom Size
640 x 8
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
84-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Program Memory Size
-

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Price
Part Number:
MC68HC11K1CFN4
Manufacturer:
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Quantity:
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Part Number:
MC68HC11K1CFN4
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Quantity:
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Operating Modes and On-Chip Memory
4.8.3 CONFIG Register Programming
4.8.4 RAM and EEPROM Security
Technical Data
100
Address: $0035
The CONFIG register is implemented with EEPROM cells, so EEPROM
procedures are required to change it. CONFIG can be programmed or
erased (including byte erase) while the MCU is operating in any mode,
provided that PTCON in BPROT is clear.
PTCON — Protect for CONFIG Bit
To change the value in the CONFIG register, complete this procedure.
Do not initiate a reset until the procedure is complete.
The NOSEC bit in the CONFIG register enables and disables an optional
security feature which protects the contents of EEPROM and RAM from
unauthorized access. This is done by restricting operation to single-chip
modes, preventing the memory locations from being monitored
externally. Single-chip modes do not allow visibility of the internal
address and data buses. Resident programs, however, have unlimited
access to the internal EEPROM and RAM and can read, write, or
transfer the contents of these memories.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
0 = CONFIG register can be programmed or erased normally.
1 = CONFIG register cannot be programmed or erased.
Erase the CONFIG register.
Program the new value to the CONFIG address.
Initiate reset.
Operating Modes and On-Chip Memory
BULKP
Bit 7
1
Figure 4-12. Block Protect Register (BPROT)
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LVPEN
6
1
BPRT4
5
1
PTCON
4
1
BPRT3
3
1
BPRT2
2
1
M68HC11K Family
BPRT1
1
1
MOTOROLA
BPRT0
Bit 0
1

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