HC705J2 datasheet(54/78 Pages) MOTOROLA

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MOTOROLA

MEMORY

MC68HC705J2

6-2

PORT A DATA REGIST

TIMER INTERRUPT VECTOR (H

TIMER INTERRUPT VECTOR (

EXTERNAL INTERRUPT VECTOR

SOFTWARE INTERRUPT VECTOR

RESET VECTOR (HI

RESET VECTOR (LO

$001C

$001B

$0009

$0008

$0007

$0006

$0005

$0004

$0003

$0002

$0001

$0000

$0FF7

$0FF8

$0FF9

$0FFA

$0FFB

$0FFC

$0FFD

$0FFE

$0FFF

PORT B DATA REGIST

PORT A DATA DIRECTION REGI

PORT B DATA DIRECTION REGIS

UNUSED

EPROM PROGRAMMING REGIST

•

COP REGISTE

$0FF0

WRITING 0 TO BIT 0 OF $0FF0 C

COP TIMER. READING $0FF0 RET

USER EPROM DATA.

UNUSED

112 BYTES

$000

$001F

$0FFF

I/O REGISTERS

32 BYTES

USER VECTOR

(EPROM)

16 BYTES

BOOTLOADER RO

239 BYTES

$0FEF

$06FF

UNUSED

1536 BYTES

SRAM

112 BYTE

UNUSED

TIMER COUNTER REGISTE

TIMER CONTROL AND STATUS REG

$000A

UNUSED

$070

$008F

$009

$002

$00FF

$010

$0FF0

USER EPROM

2048 BYTES

USER

EPROM

8 BYTES

$0EFF

$0F00

•

$0F0

MASK OPTION REGIST

$00BF

$00C

STACK

64 BYTES

UNUSED

RESERVED

$001D

$001E

$001F

•

Figure 6-1. Memory Map

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