MC68HC05SU3A Datasheet, PDF (30/80 Pages) Freescale Semiconductor, Inc – Fully static chip design featuring the industry standard 8-bit M68HC05 core

Freescale Semiconductor, Inc.
4.4
Memory Map
Figure 4-1 shows the memory map for MC68HC05SU3A device.
4
$0000
$000F
$0010
I/O
16 Bytes
User RAM
128 Bytes
$008F
$0090
$00BF
$00C0
$00FF
$0100
Unused
Stack
64 Bytes
Unused
$0FFF
$1000
User ROM
3840 Bytes
$1EFF
$1F00
$1FEF
$1FF0
$1FFF
Self-Check
240 Bytes
User Vectors
12 Bytes
0
Ports
8 Bytes
Timer Registers
2 Bytes
Port Option Register
KBI Register
Misc. Register
Reserved
Reserved
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
Reserved
$0D
Reserved
$0E
Reserved
$0F
$1FF0
$1FF2
$1FF4
$1FF6
$1FF8
$1FFA
$1FFC
$1FFE
Reserved
Reserved
KBI
Timer
IRQ2
IRQ
SWI
RESET
Figure 4-1 MC68HC05SU3A Memory Map
TPG
MEMORY AND REGISTERS
MC68HC05SU3A
4-2
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