Philips Semiconductors
Preliminary data
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
87LPC764
FFFFh
FFFFh
FD01h
UNUSED SPACE
UNUSED CODE
MEMORY SPACE
CONFIGURATION BYTES
UCFG1, UCFG2
(ACCESSIBLE VIA MOVX)
FCFFh
32-BYTE CUSTOMER
CODE SPACE
FD00h
(ACCESSIBLE VIA MOVC)
FCE0h
FFh
SPECIAL FUNCTION
UNUSED CODE
MEMORY SPACE
REGISTERS
(ONLY DIRECTLY
ADDRESSABLE)
UNUSED SPACE
1000h
0FFFh
80h
7Fh
128 BYTES ON-CHIP DATA
MEMORY
(DIRECTLY AND
INDIRECTLY
ADDRESSABLE)
4 K BYTES ON-CHIP
CODE MEMORY
16-BIT ADDRESSABLE BYTES
INTERRUPT VECTORS
00h
0000h
0000h
ON-CHIP CODE
MEMORY SPACE
ON-CHIP DATA
MEMORY SPACE
EXTERNAL DATA
MEMORY SPACE*
*
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.
SU01216
Figure 1. 87LPC764 Program and Data Memory Map
4
2001 Oct 26
NXP [ NXP ]
