MC68HC05SR3 Datasheet, PDF (34/96 Pages) Freescale Semiconductor, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcontroller Units

4.4
Memory Map
Figure 4-1 shows the memory map for MC68HC05SR3/MC68HC705SR3 device.
4
$0000
$000F
$0010
I/O
16 Bytes
User RAM
128 Bytes
$008F
$0090
$00BF
$00C0
$00FF
$0100
Unused
Stack
64 Bytes
0
Ports
8 Bytes
Timer Registers
2 Bytes
Port Option Register
KBI Register
Misc. Register
EPROM Register
ADC Registers
2 Bytes
15
Port A Data Register
$00
Port B Data Register
$01
Port C Data Register
$02
Port D Data Register
$03
Port A Data Direction Register
$04
Port B Data Direction Register
$05
Port C Data Direction Register
$06
Port D Data Direction Register
$07
Timer Data Register
$08
Timer Control Register
$09
Port Option Register
$0A
Keyboard Interrupt Mask Register
$0B
Miscellaneous Control Register
$0C
EPROM Programming Control Register
$0D
ADC Status and Control Register
$0E
ADC Data Register
$0F
Unused
$0FFF
$1000
User ROM/EPROM
3840 Bytes
$1EFF
$1F00
Self-Check/Bootstrap
240 Bytes
$1FEF
$1FF0
$1FFF
User Vectors
12 Bytes
$1FF0
$1FF2
$1FF4
$1FF6
$1FF8
$1FFA
$1FFC
$1FFE
Reserved
Reserved
KBI
Timer
IRQ2
IRQ
SWI
RESET
Figure 4-1 MC68HC05SR3/MC68HC705SR3 Memory Map
Freescale
4-2
MEMORY AND REGISTERS
TPG
MC68HC05SR3