XA-G39 データシートの表示（PDF） - Philips Electronics

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XA-G39

XA 16-bit microcontroller family 32K FLASH/1K RAM, watchdog, 2 UARTs

Philips Electronics 

Philips Semiconductors

XA 16-bit microcontroller family

32K Flash/1K RAM, watchdog, 2 UARTs

Preliminary data

XA-G39

FFFFFh

UP TO 1 MBYTE

TOTAL CODE

MEMORY

8000h

7FFFh

0000h

32 KBYTES

ON-CHIP

CODE MEMORY

2 KBYTES BOOT ROM

Note: The Boot ROM is enabled via the ENBOOT bit in register AUXR.

FFFFh

F800h

Figure 1. XA-G39 Program Memory Map

SU01589

Data Segment 0

FFFFFh

Other Data Segments

FFFFFh

DATA MEMORY

(INDIRECTLY ADDRESSED,

OFF-CHIP)

DATA MEMORY

(INDIRECTLY ADDRESSED,

OFF-CHIP)

1 KBYTE

ON-CHIP DATA

MEMORY

(RAM)

0400H

03FFh

DATA MEMORY

(DIRECTLY AND INDIRECTLY

ADDRESSABLE, ON CHIP)

BIT-ADDRESSABLE

DATA AREA

DATA MEMORY

(DIRECTLY AND INDIRECTLY

ADDRESSABLE, ON CHIP)

0040h

003Fh

0020h

001Fh

0000h

DIRECTLY ADDRESSED DATA

(1k PER SEGMENT)

0400H

03FFh

DATA MEMORY

(DIRECTLY AND INDIRECTLY

ADDRESSABLE, OFF-CHIP)

0040h

003Fh

0020h

001Fh

0000h

BIT-ADDRESSABLE

DATA AREA

DATA MEMORY

(DIRECTLY AND INDIRECTLY

ADDRESSABLE, OFF-CHIP)

Figure 2. XA-G39 Data Memory Map

SU01590

2002 Mar 13

9

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