MC68HC705 MOTOROLA [Motorola, Inc], MC68HC705 Datasheet - Page 106

• Manufacturer Part Number: MC68HC705
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

EPROM/OTPROM (PROM)
Technical Data
106
To program the PROM MCU, the MCU is installed in the PCB, along with
an EPROM device programmed with user code; the MCU is then
subjected to a series of routines. The routines necessary to program,
verify, and secure the PROM MCU are:
Other board routines available to the user are:
The user first configures the MCU for the bootstrap mode of operations
by installing a fabricated jumper across pins 1 and 2 of the board’s mode
select header, J1. Next, the board’s mode switches (S3, S4, S5, and S6)
are set to determine the routine to be executed after the next reset, as
shown in
Program and verify PROM
Verify PROM contents only
Secure PROM contents and verify
Secure PROM contents and dump
Load program into RAM and execute
Execute program in RAM
Dump PROM contents
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•
•
•
•
•
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Program and verify PROM
Verify PROM contents only
Secure PROM and verify
Secure PROM and dump through the serial communications
interface (SCI)
Load program into random-access memory (RAM) and execute
Execute program in RAM
Dump PROM contents (binary upload)
Table
EPROM/OTPROM (PROM)
Table 9-2. PROM Programming Routines
9-2.
Routine
Off
Off
On
On
Off
Off
Off
S3
MC68HC705C8A — Rev. 2.0
Off
Off
Off
On
On
Off
On
S4
Off
On
On
On
Off
Off
On
S5
MOTOROLA
Off
Off
Off
Off
Off
On
Off
S6