mc68hc05jb4p Freescale Semiconductor, Inc, mc68hc05jb4p Datasheet - Page 128

• Manufacturer Part Number: mc68hc05jb4p
• Description: Mc68hc705jb4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

GENERAL RELEASE SPECIFICATION
A.4
PAINTEN – PA0-PA3 External Interrupt Options
OSCDLY – Oscillator Delay Option
LVREN – LVR Option
BOOTSTRAP MODE
Bootloader mode is entered upon the rising edge of RESET if the IRQ/V
at V
ROM area from $1E00 to $1FEF. This program handles copying of user code from
an external EPROM into the on-chip EPROM. The bootload function has to be
done from an external EPROM. The bootloader performs one programming pass
at 1ms per byte then does a verify pass.
$1DFF
$00C0
$0FFF
$1FEF
$1FFF
$007E
$00FF
$1E00
$1FF0
$0000
$003F
$0040
$007F
$0080
$012F
$0130
$1000
TST
1 = External interrupt capability on PA0-PA3 disabled.
0 = External interrupt capability on PA0-PA3 enabled.
1 = 128 internal clock cycles.
0 = 4064 internal clock cycles.
1 = Low Voltage Reset circuit enabled.
0 = Low Voltage Reset circuit disabled.
64 Byte Stack
and the PB0 pin is at logic zero. The Bootloader program is masked in the
Mask Option Register
Bootstrap ROM
User EPROM
I/O Registers
User Vectors
3792 Bytes
3584 Bytes
User RAM
176 Bytes
496 Bytes
64 Bytes
63 Bytes
16 Bytes
Unused
Unused
Figure A-1. MC68HC705JB4 Memory Map
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
February 24, 1999
EPROM Program Control Register
IRQ/IRQ2 Vector (High Byte)
IRQ/IRQ2 Vector (Low Byte)
Timer1 Vector (High Byte)
Timer1 Vector (Low Byte)
Reset Vector (High Byte)
Reset Vector (Low Byte)
MFT Vector (High Byte)
USB Vector (High Byte)
MFT Vector (Low Byte)
USB Vector (Low Byte)
SWI Vector (High Byte)
SWI Vector (Low Byte)
I/O Registers
Reserved
Reserved
Reserved
Reserved
64 Bytes
$0000
$003E
$003F
$1FF0
$1FF1
$1FF2
$1FF3
$1FF4
$1FF5
$1FF6
$1FF7
$1FF8
$1FF9
$1FFA
$1FFB
$1FFC
$1FFD
$1FFE
$1FFF
PP
pin is
REV