Freescale Semiconductor, Inc.
MC68HC05BD7 Rev. 2.0
GENERAL RELEASE SPECIFICATION
SECTION 2
MEMORY
The MC68HC05BD7 has a 16K byte memory map, consisting of user ROM/EPROM, RAM,
Self-Check/Bootstrap ROM, and I/O as shown in Figure 2-1.
$0000
I/O
48 Bytes
$0030
$00C0
Stack
64 Bytes
RAM
$0100
256 Bytes for HC05BD2
384 Bytes for HC05BD7/HC705BD7
$01B0
Unused
$0E00
480 Bytes Bootstrap ROM for HC705BD7
Unused in HC05BD2/HC05BD7
$0FE0
$1000
User ROM
5.57K-bytes for HC05BD2
11.75K-bytes for HC05BD7
$2800
User EPROM
11.5K-bytes for HC705BD7
$3E00
$3F00
224 Bytes Self-Check ROM for HC05BD2/HC05BD7
Unused in HC705BD7
$3FE0
Self-Check/Bootstrap Vectors 16 Bytes
User Vectors 16 Bytes
$3FF0
$3FFF
Figure 2-1: The 16K Memory Map of the MC68HC05BD7
SECTION 2: MEMORY
Page 11
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