7630_03 Datasheet, PDF (169/238 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPLICATION
2.11 Built-in PROM version
2.11.3 Programming adapter
To write or read data into/from the internal PROM, use the dedicated programming adapter and general-
purpose PROM programmer as shown in Table 2.11.2.
Table 2.11.2 Programming adapter
Microcomputer
M37630E4FS
M37630E4FP
(one-time blank)
Programming adapter
PCA7431
PCA7430
(1) Write and read
In PROM mode, operation is the same as that of the M5M27C101, but programming conditions of
PROM programmer are not set automatically because there are no internal device ID codes.
Accurately set the following conditions for data write/read. Take care not to apply 21 V to VPP pin,
or the product may be permanently damaged.
q Programming voltage : 12.5 V
q Setting of programming adapter switch : Refer to Table 2.11.3.
q Setting of PROM programmer address : Refer to Table 2.11.4.
Table 2.11.3 Setting of programming adapter switch
Programming adapter
SW 1
PCA7431, PCA7430
CMOS
SW 2
CMOS
Table 2.11.4 Setting of PROM programmer address
Microcomputer
PROM programmer start address
M37630E4FS
M37630E4FP
Address : C08016
PROM programmer completion address
Address : FFFB16
(2) Erasing
Contents of the windowed EPROM are erased through an ultraviolet light source of the wavelength
2537 Angstrom. At least 15 W-sec/cm are required to erase EPROM contents.
7630 Group User’s Manual
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