TS87C51RC2 ATMEL Corporation, TS87C51RC2 Datasheet - Page 53

• Manufacturer Part Number: TS87C51RC2
• Description: High Performance 8-bit Microcontroller 32 Kbytes Otp
• Manufacturer: ATMEL Corporation

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 TS87C51RB2/RC2/RD2 is placed
in specific set-up modes (See Figure 18.).
Control and program signals must be held at the levels indicated in Table 30.
8.3.2. Definition of terms
Address Lines:
RC, P3.5 (A15) for RD)
Data Lines:
Control Signals:
Program Signals: ALE/PROG, EA/VPP.
Rev. C - 06 March, 2001
Program Code data
Verify Code data
Program Encryption Array
Address 0-3Fh
Read Signature Bytes
Program Lock bit 1
Program Lock bit 2
Program Lock bit 3
Mode
P1.0-P1.7, P2.0-P2.5, P3.4, P3.5 respectively for A0-A15 (P2.5 (A13) for RB, P3.4 (A14) for
P0.0-P0.7 for D0-D7
RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
RST
1
1
1
1
1
1
1
PSEN
Table 30. EPROM Set-Up Modes
0
0
0
0
0
0
0
PROG
ALE/
1
1
EA/VPP
12.75V
12.75V
12.75V
12.75V
12.75V
1
1
P2.6
0
0
0
0
1
1
1
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
P2.7
1
1
1
1
0
TS80C51RA2/RD2
P3.3
1
0
1
0
1
1
1
P3.6
1
1
0
0
1
0
1
P3.7
1
1
1
0
1
0
0
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