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S3F80P5 FLASH MCU S3F80P5_UM_ REV1.00
OPERATING MODE CHARACTERISTICS
When 3.3 V is supplied to the TEST pin of the S3F80P5, the Flash ROM programming mode is entered. The
operating mode (read, write, or read protection) is selected according to the input signals to the pins listed in
Table 22-2 below.
Table 18-2. Operating Mode Selection Criteria
V
DD
TEST REG/nMEM
Address
(A15–A0)
R/W Mode
3.3 V 3.3 V 0 0000H 1 Flash ROM read
3.3 V 0 0000H 0 Flash ROM program
3.3 V 1 0E3FH 0 Flash ROM read protection
NOTE: "0" means Low level; "1" means High level.
18-4