MC908JL16CFAE FREESCALE [Freescale Semiconductor, Inc], MC908JL16CFAE Datasheet - Page 166

• Manufacturer Part Number: MC908JL16CFAE
• Description: Microcontrollers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Low-Voltage Inhibit (LVI)
14.4 LVI Control Register (CONFIG2/CONFIG1)
The LVI module is controlled by three bits in the configuration registers, CONFIG1 and CONFIG2.
LVID — Low Voltage Inhibit Disable Bit
LVIT1, LVIT0 — LVI Trip Voltage Selection Bits
14.5 Low-Power Modes
The STOP and WAIT instructions put the MCU in low power-consumption standby modes.
14.5.1 Wait Mode
The LVI module, when enabled, will continue to operate in wait mode.
14.5.2 Stop Mode
The LVI module, when enabled, will continue to operate in stop mode.
166
LVID disables the LVI module. Reset clears LVID.
These two bits determine at which level of V
are cleared by a power-on reset only.
1 = Low voltage inhibit disabled
0 = Low voltage inhibit enabled
Address: $001E
Address: $001F
Reset:
Reset:
Read:
Read:
Write:
Write:
POR:
IRQPUD
COPRS
Bit 7
Bit 7
R
R
0
0
0
1. See
Figure 14-2. Configuration Register 2 (CONFIG2)
Figure 14-3. Configuration Register 1 (CONFIG1)
LVIT1
= Reserved
= Reserved
0
0
1
1
Chapter 17 Electrical Specifications
R
R
6
0
0
6
0
Table 14-1. Trip Voltage Selection
MC68HC908JL16 Data Sheet, Rev. 1.1
R
R
5
0
0
5
0
LVIT0
0
1
0
1
DD
U = Unaffected
the LVI module will come into action. LVIT1 and LVIT0
LVIT1
LVID
U
4
0
4
0
For V
For V
For V
LVIT0
U
R
3
0
3
0
Comments
for full parameters.
DD
DD
DD
Reserved
= 3 V operation
= 3 V operation
= 5 V operation
SSREC
R
2
0
0
2
0
(1)
STOP
R
1
0
0
1
0
Freescale Semiconductor
ICLKDIS
STOP_
COPD
Bit 0
Bit 0
0
0
0