P87LPC779 datasheet(4/74 Pages) PHILIPS

No de pièce	P87LPC779

Description	CMOS single-chip 8-bit 80C51 microcontroller with 128-byte data RAM, 8 kB OTP

PDF	74 Pages

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Fabricant	PHILIPS [NXP Semiconductors]

Site Internet	http://www.nxp.com

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4 / 74 page

Philips Semiconductors

P87LPC779

CMOS single-chip 8-bit microcontroller

Product data

Rev. 02 — 03 May 2004

4 of 74

9397 750 13213

(1) The P87LPC779 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.

Fig 2.

Memory map.

UNUSED CODE

MEMORY SPACE

UNUSED CODE

MEMORY SPACE

32-BYTE CUSTOMER

CODE SPACE

(ACCESSIBLE VIA

MOVC)

8 KBYTES ON-CHIP

DATA MEMORY

128 BYTES ON-CHIP DATA

MEMORY (DIRECTLY AND

INDIRECTLY ADDRESSABLE

VIA MOVC)

SPECIAL FUNCTION

REGISTERS

(ONLY DIRECTLY

ADDRESSABLE)

CONFIGURATION BYTES

UCFG1, UCFG2

(ACCESSIBLE VIA MOVX)

UNUSED SPACE

INTERRUPT

VECTORS

on-chip code

memory space

0000h

UNUSED SPACE

16 BYTES

BIT-ADDRESSABLE

00h

0000h

FD00h

FD01h

FFFFh

7Fh

FFh

80h

on-chip data

memory space

external data

memory space(1)

1FFFh

2000h

FCE0h

FCFFh

FFFFh

002aaa816

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