P8XCE560 Datasheet, PDF (75/84 Pages) NXP Semiconductors – 80C51 Central Processing Unit (CPU)

Philips Semiconductors
8-bit microcontroller
Product specification
P8xCE560
Table 86 EPROM programming modes
MODE
RSTIN
Read Signature
Program code data
Verify code data
Program Encryption table
Program Lock bit 1
Program Lock bit 2
Program Lock bit 3
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
HIGH
PSEN
LOW
LOW
LOW
LOW
LOW
LOW
LOW
ALE/
PROG
EA/V_PP
HIGH
LOW ⁽¹⁾
HIGH
LOW⁽¹⁾
LOW⁽¹⁾
LOW⁽¹⁾
LOW⁽¹⁾
HIGH
V_PP(2)
HIGH
V_PP(2)
V_PP(2)
V_PP(2)
V_PP(2)
P2.7
LOW
HIGH
LOW
HIGH
HIGH
HIGH
LOW
P2.6
LOW
LOW
LOW
LOW
HIGH
HIGH
HIGH
Notes
1. Each programming pulse is:
a) LOW for 50 ± 5 µs.
b) HIGH for at least 5 µs.
2. ALE/PROG receives 5 programming pulses while V_PP is held at 12.75 ± 0.25 V.
P3.7
LOW
HIGH
HIGH
HIGH
HIGH
LOW
LOW
P3.6
LOW
HIGH
HIGH
LOW
HIGH
LOW
HIGH
P3.3
LOW
HIGH
LOW
HIGH
HIGH
HIGH
HIGH
handbook, full pagewidth
A0 to A7
HIGH
HIGH
HIGH
HIGH
4 to 6 MHz
P1
RST
P3.6
P3.7
P3.3
XTAL2
XTAL1
VSS
VDD
P0
EA/VPP
ALE/PROG
P8xCE560
PSEN
P2.7
P2.6
P2.0 to P2.5
P3.4
P3.5
MBH090
+5 V
PGM data
+12.75 V
5 50 µs - PULSES TO GROUND
LOW
HIGH
LOW
A8 to A13
A14
A15
Fig.32 Programming configuration.
1997 Aug 01
75