MC705P6ACPE Datasheet, PDF (24/98 Pages) Freescale Semiconductor, Inc – M68HC05 Microcontrollers

Memory
Addr.
$001B
$001C
$001D
$001E
$001F
Register Name
Alternate Timer
Register LSB (ATRL)
See page 49.
EPROM Programming
Register (EPROG)
See page 58.
A/D Conversion Value
Data Register (ADC)
See page 55.
A/D Status and Control
Register (ADSC)
See page 54.
Reserved for Test
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Bit 7
ACRL7
1
0
0
AD7
CC
0
R
6
ACRL6
1
0
0
AD6
ADRC
0
R
5
ACRL5
1
0
0
AD5
ADON
0
R
4
ACRL4
3
ACRL3
1
1
0
0
0
0
AD4
AD3
Unaffected by reset
0
0
0
0
R
R
2
ACRL2
1
ELAT
0
AD2
CH2
0
R
1
ACRL1
0
0
0
AD1
CH1
0
R
Bit 0
ACRL0
0
EPGM
0
AD0
CH0
0
R
= Unimplemented
R
= Reserved
U = Undetermined
Figure 2-3. I/O and Control Register Summary (Sheet 3 of 3)
2.7 Mask Option Register
The mask option register (MOR) is a pair of EPROM bytes located at $1EFF and $1F00. It controls the
programmable options on the MC68HC705P6A. See Chapter 11 Mask Option Register (MOR) for
additional information.
$1EFF
Read:
Write:
Erased State:
Bit 7
PA7PU
0
6
PA6PU
0
5
PA5PU
0
4
PA4PU
0
3
PA3PU
0
2
PA2PU
0
1
PA1PU
0
Bit 0
PA0PU
0
$1F00 Bit 7
6
5
4
3
2
1
Bit 0
Read:
SECURE
Write:
SWAIT SPR1
SPR0
LSBF LEVEL
COP
Erased State:
0
0
0
0
0
0
0
0
= Unimplemented
Figure 2-4. Mask Option Register (MOR)
MC68HC705P6A Advance Information Data Sheet, Rev. 2.1
24
Freescale Semiconductor