Philips Semiconductors
Product data
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
P87LPC764
FFFFh
UNUSED SPACE
UNUSED CODE
MEMORY SPACE
FCFFh
32-BYTE CUSTOMER
CODE SPACE
(ACCESSIBLE VIA MOVC)
FCE0h
SPECIAL FUNCTION
REGISTERS
(ONLY DIRECTLY
ADDRESSABLE)
1000h
0FFFh
4 K BYTES ON-CHIP
CODE MEMORY
UNUSED SPACE
128 BYTES ON-CHIP DATA
MEMORY
(DIRECTLY AND
INDIRECTLY
ADDRESSABLE)
16-BIT ADDRESSABLE BYTES
INTERRUPT VECTORS
0000h
ON-CHIP CODE
MEMORY SPACE
*
ON-CHIP DATA
MEMORY SPACE
80h
7Fh
FFh
FFFFh
FD01h
CONFIGURATION BYTES
UCFG1, UCFG2
(ACCESSIBLE VIA MOVX)
FD00h
UNUSED CODE
MEMORY SPACE
2Fh
20h
00h
EXTERNAL DATA
MEMORY SPACE*
0000h
The 87LPC764 does not support access to external data memory. However, the User Configuration Bytes
are accessed via the MOVX instruction as if they were in external data memory.
Figure 1. P87LPC764 Program and Data Memory Map
SU01752
2003 Sep 03
5