MC68HC11E1CFN2 Freescale Semiconductor, MC68HC11E1CFN2 Datasheet - Page 54

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MC68HC11E1CFN2

Manufacturer Part Number
MC68HC11E1CFN2
Description
IC MCU 512 EEPROM 2MHZ 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Datasheet

Specifications of MC68HC11E1CFN2

Core Processor
HC11
Core Size
8-Bit
Speed
2MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Type
ROMless
Eeprom Size
512 x 8
Ram Size
512 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
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Program Memory Size
-

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Operating Modes and On-Chip Memory
2.4.2 Programming the EPROM with Downloaded Data
2.4.3 EPROM and EEPROM Programming Control Register
Data Sheet
54
When using this method, the EPROM is programmed by software while in the
special test or bootstrap modes. User-developed software can be uploaded
through the SCI or a ROM-resident EPROM programming utility can be used. The
12-volt nominal programming voltage must be present on the XIRQ/V
use the resident utility, bootload a 3-byte program consisting of a single jump
instruction to $BF00. $BF00 is the starting address of a resident EPROM
programming utility. The utility program sets the X and Y index registers to default
values, then receives programming data from an external host, and puts it in
EPROM. The value in IX determines programming delay time. The value in IY is a
pointer to the first address in EPROM to be programmed (default = $D000).
When the utility program is ready to receive programming data, it sends the host
the $FF character. Then it waits. When the host sees the $FF character, the
EPROM programming data is sent, starting with the first location in the EPROM
array. After the last byte to be programmed is sent and the corresponding
verification data is returned, the programming operation is terminated by resetting
the MCU.
For more information, Motorola application note AN1060 entitled
Bootstrap Mode
The EPROM and EEPROM programming control register (PPROG) enables the
EPROM programming voltage and controls the latching of data to be programmed.
ODD — Program Odd Rows in Half of EEPROM (Test) Bit
EVEN — Program Even Rows in Half of EEPROM (Test) Bit
1. MC68HC711E9 only
Refer to
Refer to
Address: $103B
Reset:
Read:
Write:
For MC68HC711E9, PPROG is also the EEPROM programming control
register.
For the MC68HC711E20, EPROM programming is controlled by the
EPROG register and EEPROM programming is controlled by the PPROG
register.
Freescale Semiconductor, Inc.
For More Information On This Product,
2.5
2.5
ODD
Bit 7
Operating Modes and On-Chip Memory
0
Figure 2-14. EPROM and EEPROM Programming
EEPROM.
EEPROM.
Go to: www.freescale.com
has been included at the back of this document.
EVEN
6
0
Control Register (PPROG)
ELAT
5
0
(1)
BYTE
4
0
ROW
3
0
ERASE
M68HC11E Family — Rev. 5
2
0
M68HC11
EELAT
1
0
PPE
MOTOROLA
pin. To
EPGM
Bit 0
0

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