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