Hitachi AP1 Data Book page 33

DESIGN PROCEDURE AND SUPPORT TOOLS
FOR 4-BIT SINGLE-CHIP MICROCOMPUTER
The cross assembler and the hardware simulator using various
types of computer are prepared by Hitachi as supporting systems to
develop user's programs.
ered as the LSI by the company.
Fig. 1 shows the typical program design procedure and Table I
shows the system development support tools for 4-bit single-chip
microcomputer family used in these processes.
User's programs are mask programmed into the ROM and deliv-
No
IExplanation)
<D
®J
(3
T'lt Editor' CRr Editor
Evaluation Kit
H68SD5
Intel MDS
EXORciser
IBM370
~ Cross Auembler
Evaluation Kit
H68SD5
Intel MDS
EXORciser
IBM370
Evaluation Kit
Evaluation Board
H68SD5
EPROM on the Package Type
Microcomputer
HD614P080S
CD
When the user programs the system, the predetermined functions are
assigned to the 110 pin and the RAM before the programming.
@
A flow chart is designed to achieve the predetermined functions and the flow
chart is coded by using the mnemonic code.
@
The coded flow chart is punched into the card or the paper tape or written into
the floppy disk, to generate a source program.
@
The source program is assembled by the evaluation kit or the H68SD5,
to generate the object program. In this case, errors during the assembling are
also detected.
@)
Hardware simulation is performed to confirm the program.
The company provides four kinds of hardware, the H68SD5, the evaluation kit,
the evaluation board and the EPROM on the package type microcomputer. The
consumers are able to choose the best suitable tool.
®
The completed program is sent to the company in the form of EPROM or the
object tape.
o
Options such as ROM is masked by the company, LSI is testatively produced
and the sample is handed in to the user. After the user has evaluated the
sample and confirmed that the program is correct, mass production is
started.
Figure 1 Program Design Procedure
31