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S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
OPERATING MODE CHARACTERISTICS
When 12.5 V is supplied to the V
mode is entered.
The operating mode (read, write, or read protection) is selected according to the input signals to the pins listed in
Table 19-3 below.
V
V
(TEST)
DD
PP
3.3 V
3.3 V
12.5 V
12.5 V
NOTES:
1.
The V
(Test) pin must be connected to V
PP
2.
"0" means Low level; "1" means High level.
(TEST) pin of the S3F8275X/F8278X/F8274X, the Flash ROM programming
PP
Table 19-3. Operating Mode Selection Criteria
REG/MEM
Address
(A15-A0)
0
0000H
0
0000H
1
0E3FH
(S3F8275X only).
DD
S3F8275X/F8278X/F8274X FLASH MCU
R/W
1
Flash ROM read
0
Flash ROM program
0
Flash ROM read protection
Mode
19-5
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