mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 80

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Configuration Registers (CONFIG)
5.3 Functional Description
Data Sheet
80
† One-time writable register after each reset.
†† Reset by POR only.
$001D
Addr.
$001F
Configuration Register 2
Configuration Register 1
Register Name
NOTE:
(CONFIG2)
(CONFIG1)
†
†
The configuration registers are used in the initialization of various
options. Since the various options affect the operation of the MCU, it is
recommended that these registers be written immediately after reset.
The configuration registers are located at $001D and $001F. The
configuration registers may be read at anytime.
The CONFIG registers are one-time writable by the user after each
reset. These registers are not in the FLASH memory but are special
registers containing one-time writable latches after each reset. Upon a
reset, the CONFIG registers default to predetermined settings as shown
in
Although the LVISEL[1:0] bits default to predetermined setting of
LVISEL[1:0] = 0:1 by a POR only, these bits can still be written once after
each reset other than POR.
Reset:
Reset:
Read:
Read:
Write:
Write:
Figure 5-1. CONFIG Registers Summary
Figure 5-2
COPRS
Bit 7
PEE
Configuration Registers (CONFIG)
0
0
and
LVISTOP LVIRSTD LVIPWRD
= Unimplemented
IRCDIS
STOP_
6
0
0
Figure
XCLKEN
STOP_
5-3.
5
0
0
DIV2CLK
0
4
0
††
PCEH
MC68HC908LJ24/LK24 — Rev. 2.1
3
0
0
0
SSREC
PCEL
Freescale Semiconductor
0
0
2
LVISEL1
STOP
0
1
0
††
LVISEL0
COPD
Bit 0
1
0
††