MC68HC705KJ1 Datasheet, PDF (22/108 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Memory
PORT A DATA REGISTER (PORTA)
PORT B DATA REGISTER (PORTB)
UNIMPLEMENTED
DATA DIRECTION REGISTER A (DDRA)
DATA DIRECTION REGISTER B (DDRB)
UNIMPLEMENTED
TIMER STATUS AND CONTROL REGISTER (TSCR)
TIMER CONTROL REGISTER (TCR)
$0000
↓
$001F
I/O REGISTERS
32 BYTES
IRQ STATUS AND CONTROL REGISTER (ISCR)
UNIMPLEMENTED
$0020
↓
$00BF
UNIMPLEMENTED
160 BYTES
PULLDOWN REGISTER PORT A (PDRA)
PULLDOWN REGISTER PORT B (PDRB)
$00C0
↓
$00FF
RAM
64 BYTES
UNIMPLEMENTED
$0100
↓
$02FF
UNIMPLEMENTED
512 BYTES
EPROM PROGRAMMING REGISTER (EPROG)
UNIMPLEMENTED
$0300
↓
$07CF
$07D0
↓
$07ED
EPROM
1232 BYTES
UNIMPLEMENTED
30 BYTES
RESERVED
COP REGISTER (COPR)⁽¹⁾
MASK OPTION REGISTER (MOR)
$07EE
$07EF
$07F0
↓
$07FF
TEST ROM
2 BYTES
REGISTERS AND EPROM
16 BYTES
RESERVED
TIMER INTERRUPT VECTOR HIGH
TIMER INTERRUPT VECTOR LOW
EXTERNAL INTERRUPT VECTOR HIGH
EXTERNAL INTERRUPT VECTOR LOW
SOFTWARE INTERRUPT VECTOR HIGH
SOFTWARE INTERRUPT VECTOR LOW
RESET VECTOR HIGH
RESET VECTOR LOW
Note 1. Writing to bit 0 of $07F0 clears the COP watchdog.
Figure 2-1. Memory Map
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
↓
$000F
$0010
$0011
$0012
↓
$0017
$0018
$0019
↓
$001E
$001F
$07F0
$07F1
$07F2
↓
$07F7
$07F8
$07F9
$07FA
$07FB
$07FC
$07FD
$07FE
$07FF
MC68HC705KJ1 • MC68HRC705KJ1 • MC68HLC705KJ1 Data Sheet, Rev. 4.1
22
Freescale Semiconductor