MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 74

• Manufacturer Part Number: MC9S08GT16CFB
• Manufacturer: Freescale Semiconductor

Specifications of MC9S08GT16CFB

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 20MHz
• Interface Type: SCI/SPI
• Program Memory Type: Flash
• Program Memory Size: 16KB
• Total Internal Ram Size: 1KB
• # I/os (max): 36
• Number Of Timers - General Purpose: 4
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 2.08V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

Chapter 5 Resets, Interrupts, and System Configuration
5.8.7
LVDF — Low-Voltage Detect Flag
LVDACK — Low-Voltage Detect Acknowledge
LVDIE — Low-Voltage Detect Interrupt Enable
74
1
2
See
t
1
Provided LVDE = 1, this read-only status bit indicates a low-voltage detect event.
This write-only bit is used to acknowledge low voltage detection errors (write 1 to clear LVDF). Reads
always return 0.
This read/write bit enables hardware interrupt requests for LVDF.
RTIS2:RTIS1:RTIS0
ext
This bit can be written only one time after reset. Additional writes are ignored.
is based on the external clock source, resonator, or crystal selected by the ICG configuration. See
1 = Request a hardware interrupt when LVDF = 1.
0 = Hardware interrupt disabled (use polling).
Table A-10
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
System Power Management Status and Control 1 Register (SPMSC1)
Figure 5-8. System Power Management Status and Control 1 Register (SPMSC1)
t
RTI
Reset:
Read:
Write:
in
Appendix A, “Electrical
LVDF
Bit 7
0
Disable periodic wakeup timer
Internal Clock Source
(t
Table 5-2. Real-Time Interrupt Period
RTI
= Unimplemented or Reserved
LVDACK
MC9S08GB/GT Data Sheet, Rev. 2.3
= 1 ms, Nominal)
6
0
0
128 ms
256 ms
512 ms
1.024 s
32 ms
64 ms
8 ms
Characteristics” for the tolerance on these values.
LVDIE
5
0
1
LVDRE
4
1
1
LVDSE
3
1
(1)
Disable periodic wakeup timer
External Clock Source
LVDE
2
1
(1)
Period = t
t
t
t
ext
t
t
t
ex
t
ext
ex
ex
ex
ext
x 32768
x 16384
x 1024
x 2048
x 4096
x 8192
x 256
Freescale Semiconductor
1
0
0
ext
Table A-9
Bit 0
2
0
0
for details.