參數(shù)資料
型號(hào)： TS87C52X2-VIED
英文描述： 8-bit CMOS Microcontroller 0-60 MHz
中文描述： 8位CMOS微控制器0-60兆赫
文件頁(yè)數(shù)： 35/54頁(yè)
文件大?。?/td> 626K
代理商： TS87C52X2-VIED
Rev. B - Jan. 25, 1999
35
Preliminary
TS80C52X2
8.2.3 Signature bytes
The TS80/87C52X2 contains 4 factory programmed signatures bytes. To read these bytes, perform the process
described in section 9.
8.3 EPROM Programming
8.3.1 Set-up modes
In order to program and verify the EPROM or to read the signature bytes, the TS87C52X2 is placed in specific
set-up modes (See Figure 11.).
Control and program signals must be held at the levels indicated in Table 33.
8.3.2 Definition of terms
Address Lines:
P1.0-P1.7, P2.0-P2.4, P3.4, P3.5 respectively for A0-A12
Data Lines:
P0.0-P0.7 for D0-D7
Control Signals:
RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
Program Signals:
ALE/PROG, EA/VPP.
Table 20. EPROM Set-Up Modes
Mode
RST
PSEN
ALE/
PROG
EA/
VPP
P2.6
P2.7
P3.3
P3.6
P3.7
Program Code data
1
0
12.75V
0
1
1
1
1
Verify Code data
1
0
1
1
0
0
1
1
Program Encryption Array
Address 0-3Fh
1
0
12.75V
0
1
1
0
1
Read Signature Bytes
1
0
1
1
0
0
0
0
Program Lock bit 1
1
0
12.75V
1
1
1
1
1
Program Lock bit 2
1
0
12.75V
1
1
1
0
0
Program Lock bit 3
1
0
12.75V
1
0
1
1
0
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