MC68HC711E20CFN3 Freescale Semiconductor, MC68HC711E20CFN3 Datasheet - Page 215
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MC68HC711E20CFN3
Manufacturer Part Number
MC68HC711E20CFN3
Description
IC MCU 3MHZ 20K OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC11r
Specifications of MC68HC711E20CFN3
Core Processor
HC11
Core Size
8-Bit
Speed
3MHz
Connectivity
SCI, SPI
Peripherals
POR, WDT
Number Of I /o
38
Program Memory Size
20KB (20K x 8)
Program Memory Type
OTP
Eeprom Size
512 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
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68HC711E20CFN3
Manufacturer:
FREESCALE
Quantity:
4 463
Company:
Part Number:
MC68HC711E20CFN3
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Listing 2. BASIC Program for Personal Computer
1 ' ***********************************************************************
2 ' *
3 ' *
4 ' *
5 ' *
6 ' *
7 ' *
8 ' *
9 ' *
10 '*
11 '*
12 '*
14 '*
15 '************************************************************************
25 H$ = "0123456789ABCDEF"
30 DEFINT B, I: CODESIZE% = 8192: ADRSTART= 57344!
35 BOOTCOUNT = 25
40 DIM CODE%(CODESIZE%)
45 BOOTCODE$ = ""
49 REM ***** READ IN AND SAVE THE CODE TO BE BOOT LOADED *****
50 FOR I = 1 TO BOOTCOUNT
55 READ Q$
60 A$ = MID$(Q$, 1, 1)
65 GOSUB 7000
70 TEMP = 16 * X
75 A$ = MID$(Q$, 2, 1)
80 GOSUB 7000
85 TEMP = TEMP + X
90 BOOTCODE$ = BOOTCODE$ + CHR$(TEMP)
95 NEXT I
96 REM ***** S-RECORD CONVERSION STARTS HERE *****
97 FILNAM$="BUF34.S19"
100 CLS
105 PRINT "Filename.ext of S-record file to be downloaded (";FILNAM$;") ";
107 INPUT Q$
110 IF Q$<>"" THEN FILNAM$=Q$
120 OPEN FILNAM$ FOR INPUT AS #1
130 PRINT : PRINT "Converting "; FILNAM$; " to binary..."
999 REM ***** SCANS FOR 'S1' RECORDS *****
1000 GOSUB 6000
1010 IF FLAG THEN 1250
1020 IF A$ <> "S" THEN 1000
1022 GOSUB 6000
1024 IF A$ <> "1" THEN 1000
1029 REM ***** S1 RECORD FOUND, NEXT 2 HEX DIGITS ARE THE BYTE COUNT *****
1030 GOSUB 6000
1040 GOSUB 7000
1050 BYTECOUNT = 16 * X
1060 GOSUB 6000
1070 GOSUB 7000
1080 BYTECOUNT = BYTECOUNT + X
Freescale Semiconductor
E9BUF.BAS - A PROGRAM TO DEMONSTRATE THE USE OF THE BOOT MODE
REQUIRES THAT THE S-RECORDS FOR BUFFALO (BUF34.S19)
THIS PROGRAM HAS BEEN RUN BOTH ON A MS-DOS COMPUTER
ON THE HC11 BY PROGRAMMING AN HC711E9 WITH
BUFFALO 3.4
BE AVAILABLE IN THE SAME DIRECTORY OR FOLDER
USING QUICKBASIC 4.5 AND ON A MACINTOSH USING
QUICKBASIC 1.0.
M68HC11 Bootstrap Mode, Rev. 1.1
'STRING TO USE FOR HEX CONVERSIONS
'NUMBER OF BYTES IN BOOT CODE
'BUFFALO 3.4 IS 8K BYTES LONG
'INITIALIZE BOOTCODE$ TO NULL
'# OF BYTES IN BOOT CODE
'CONVERTS HEX DIGIT TO DECIMAL
'HANG ON TO UPPER DIGIT
'DEFAULT FILE NAME FOR S-RECORDS
'GET 1 CHARACTER FROM INPUT FILE
'FLAG IS EOF FLAG FROM SUBROUTINE
'RETURNS DECIMAL IN X
'ADJUST FOR HIGH NIBBLE
'ADD LOW NIBBLE
'BUILD BOOT CODE
Listing 2. BASIC Program for Personal Computer
215
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