Programming - Hitachi H8/3637 Hardware Manual

H8/3637 series
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6.3

Programming

The program, verify, and other modes are selected as shown in table 6.2 in PROM mode.
Table 6.2
Mode Selection in PROM Mode
CE
Mode
Write
L
Verify
L
Programming
L
disabled
L
H
H
Legend:
L:
Low level
H:
High level
V
:
V
level
PP
PP
V
: V
level
CC
CC
The programming and verifying specifications in PROM mode are the same as the specifications
of the standard HN27C101 EPROM. Page programming is not supported, however. The PROM
programmer must not be set to page mode. PROM programmers that support only page
programming cannot be used. When selecting a PROM programmer, make sure that it supports a
byte-by-byte high-speed, high-reliability programming method. Be sure to set the address range to
H'0000 to H'EDFF.
OE
PGM
V
PP
H
L
V
PP
L
H
V
PP
L
L
V
PP
H
H
L
L
H
H
Pin
V
EO
to EO
CC
7
0
V
Data input
CC
V
Data output
CC
V
High impedance Address input
CC
EA
to EA
16
0
Address input
Address input
109

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