MC68EC000EI20 Freescale Semiconductor, MC68EC000EI20 Datasheet - Page 644

• Manufacturer Part Number: MC68EC000EI20
• Description: IC MPU 32BIT 20MHZ 68-PLCC
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC000EI20

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

S-Record Output Format
The next 16 character pairs of the first S1 record are the ASCII bytes of the actual program
code/data. In this assembly language example, the programOs hexadecimal opcodes are
sequentially written in the code/data fields of the S1 records.
The rest of this code continues in the remaining S1 recordOs code/data fields and stores in
memory location 0010, etc.
The second and third S1 records also contain hexadecimal 13 (decimal 19) character pairs
and end with checksums 13 and 52, respectively. The fourth S1 record contains 07 charac-
ter pairs and has a checksum of 92.
S9 Record:
Each printable character in an S-record encodes in hexadecimal (ASCII in this example)
representation of the binary bits that transmit. Figure C-2 illustrates the sending of the first
S1 record. Table C-2 lists the ASCII code for S-records.
C-4
010100110011000100110001001100110011000000110000001100000011000000110010001110000011010101000110
2A — The checksum of the first S1 record.
S9 — S-record type S9, indicating that it is a termination record.
03 — Hexadecimal 03, indicating that three character pairs (3 bytes) follow.
0000—The address field, zeros.
FC — The checksum of the S9 record.
5
S
3
TYPE
3
1
1
3
RECORD LENGTH
MC68000 FAMILY PROGRAMMER’S REFERENCE MANUAL
1
Opcode
1
226A0004
24290008
285F
245F
237C
3
2212
Figure C-2. Transmission of an S1 Record
3
3
3
MOVE.L
MOVE.L
MOVE.L
MOVE.L
MOVE.L
MOVE.L
0
0
3
0
0
ADDRESS
3
0
0
(A7) +, A4
(A7) +, A2
(A2), D1
4(A2), A1
FUNCTION(A1), D2
#FORCEFUNC, FUNCTION(A1)
3
.
Instruction
0
0
3
2
2
3
8
8
3
5
CODE/DATA
5
4
6
F
****
****
**** 0011001001000001
MOTOROLA
3
CHECKSUM
2
2
4
A
1