MC68HC908JK3EMP MOTOROLA [Motorola, Inc], MC68HC908JK3EMP Datasheet - Page 54

• Manufacturer Part Number: MC68HC908JK3EMP
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Configuration Register (CONFIG)
5.3 Functional Description
Technical Data
54
NOTE:
Address:
The configuration register is used in the initialization of various options.
The configuration register can be written once after each reset. All of the
configuration register bits are cleared during reset. Since the various
options affect the operation of the MCU it is recommended that this
register be written immediately after reset. The configuration register is
located at $001E and $001F, and may be read at anytime.
The CONFIG registers are one-time writable by the user after each
reset. Upon a reset, the CONFIG registers default to predetermined
settings as shown in
IRQPUD — IRQ1 Pin Pull-up control bit
LVIT1, LVIT0 — Low Voltage Inhibit trip voltage selection bits
Reset:
Read:
Write:
POR:
Detail description of the LVI control signals is given in
Low Voltage Inhibit (LVI)
1 = Internal pull-up is disconnected
0 = Internal pull-up is connected between IRQ1 pin and V
IRQPUD
$001E
Bit 7
Figure 5-1. Configuration Register 2 (CONFIG2)
R
0
0
Configuration Register (CONFIG)
= Reserved
R
6
0
0
Figure 5-1
R
5
0
0
Not affected Not affected
and
LVIT1
4
0
MC68H(R)C908JL3E/JK3E/JK1E
Figure
LVIT0
3
0
5-2.
R
2
0
0
Section 16.
R
1
0
0
MOTOROLA
—
DD
Rev. 2.0
Bit 0
R
0
0