SC23M28 Silan Microelectronics, SC23M28 Datasheet - Page 4

• Manufacturer Part Number: SC23M28
• Description: 8KBIT MEMORY CARD IC
• Manufacturer: Silan Microelectronics

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2. Instruction format
Instruction table
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
S0 S1 S2 S3 S4 S5
1 0
1 1
0 0
0 0
0 1
0 1
1 0
1 0
The chip inputs and outputs the data by I/O ports, and the RST signal will control the direction of the data;
RST=1, I/O is instruction input;
RST=0, I/O is data output.
0 0 1 1
0 0 1 1
0 0 1 1
1 1 0 0
1 1 0 0
0 0 1 1
1 1 0 0
1 1 0 0
Byte1
RST
RST
CLK
CLK
V
I/O
I/O
CC
Address
A8 A9
8, 9
1 1
bit
t
d4
1
Figure 2 Command input time sequence
Figure 1 Reset and reset acknowledge
Address
t
A0-A7
Byte2
d4
1
253
254
255
0-7
2
bit
2
3
t
d2
Input data
Input data
Comparative data
Invalid
Invalid
Bit mask code
PSC code 1
PSC code 2
3
t
H
D0-D7
Byte3
t
t
d5
L
With bit-protect erasure or write
Without bit-protect erasure or write
Write protect bit with data comparison
With bit-protect read
Without bit-protect read
Write error counter
Authentication PSC code 1
Authentication PSC code 2
31
31
32
32
Operation
REV:1.0
SC23M28
Page 4 of 10
2006.07.21