s908az32ag2cfue Freescale Semiconductor, Inc, s908az32ag2cfue Datasheet - Page 131

• Manufacturer Part Number: s908az32ag2cfue
• Description: M68hc08 Microcontrollers 8-bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

14.4 LVI Status Register
The LVI status register flags V
LVIOUT — LVI Output Bit
14.5 LVI Interrupts
The LVI module does not generate interrupt requests.
14.6 Low-Power Modes
The WAIT and STOP instructions put the MCU in low power-consumption standby modes.
14.6.1 Wait Mode
With the LVIPWR bit in the configuration register programmed to logic 1, the LVI module is active after a
WAIT instruction.
With the LVIRST bit in the configuration register programmed to logic 1, the LVI module can generate a
reset and bring the MCU out of wait mode.
Freescale Semiconductor
This read-only flag becomes set when the V
CGMXCLK cycles. (See
Address:
Reset:
Read:
Write:
LVI
TRIPF
V
V
V
V
LVIOUT
$FE0F
DD
DD
DD
DD
Bit 7
0
At Level:
< V
> LVI
< LVI
< LVI
< LVI
Table
DD
Figure 14-3. LVI Status Register (LVISR)
DD
TRIPR
TRIPF
TRIPF
TRIPF
= Unimplemented
< LVI
voltages below the LVI
6
0
0
14-1). Reset clears the LVIOUT bit.
Table 14-1. LVIOUT Bit Indication
MC68HC908AZ32A Data Sheet, Rev. 2
TRIPR
V
DD
5
0
0
DD
< 32 CGMXCLK Cycles
> 40 CGMXCLK Cycles
voltage falls below the LVI
CGMXCLK Cycles:
Between 32 and 40
CGMXCLK Cycles
4
0
0
For Number of
TRIPF
Any
Any
3
0
0
level
.
2
0
0
Previous Value
TRIPF
1
0
0
LVIOUT
0 or 1
0
0
1
voltage for 32 to 40
Bit 0
LVI Status Register
0
0
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