MC68HC705J MOTOROLA [Motorola, Inc], MC68HC705J Datasheet - Page 34

• Manufacturer Part Number: MC68HC705J
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Memory
2.3 Memory Map
Technical Data
34
$07CF
$07ED
$07EE
$001F
$00BF
$00C0
$00FF
$02FF
$07D0
$07EF
$07F0
$07FF
$0000
$0020
$0100
$0300
(1)
Writing to bit 0 of $07F0 clears the computer
operating properly (COP) watchdog.
Registers and EPROM
Unimplemented
Unimplemented
Unimplemented
I/O Registers
1232 Bytes
Test ROM
160 Bytes
512 Bytes
32 Bytes
64 Bytes
30 Bytes
16 Bytes
EPROM
2 Bytes
RAM
Figure 2-1. Memory Map
Memory
Timer Status and Control Register (TSCR)
EPROM Programming Register (EPROG)
IRQ Status and Control Register (ISCR)
Data Direction Register A (DDRA)
Data Direction Register B (DDRB)
Pulldown Register Port A (PDRA)
Pulldown Register Port B (PDRB)
Port A Data Register (PORTA)
Port B Data Register (PORTB)
Software Interrupt Vector High
External Interrupt Vector High
Software Interrupt Vector Low
Timer Control Register (TCR)
Mask Option Register (MOR)
External Interrupt Vector Low
Timer Interrupt Vector High
Timer Interrupt Vector Low
COP Register (COPR)
Reset Vector High
Reset Vector Low
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Reserved
Reserved
MC68HC705J1A — Rev. 4.0
(1)
MOTOROLA
$07FC
$07FD
$000A
$000B
$001E
$07FA
$07FB
$07FE
$07FF
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000F
$0010
$0011
$0012
$0017
$0018
$0019
$001F
$07F0
$07F1
$07F2
$07F7
$07F8
$07F9