mc9s08rd60fj Freescale Semiconductor, Inc, mc9s08rd60fj Datasheet - Page 62

• Manufacturer Part Number: mc9s08rd60fj
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Resets, Interrupts, and System Configuration
5.6 Low-Voltage Detect (LVD) System
The MC9S08RC/RD/RE/RG includes a system to protect against low-voltage conditions in order to
protect memory contents and control MCU system states during supply voltage variations. The system is
comprised of a power-on reset (POR) circuit, an LVD circuit with flag bits for warning and detection, and
a mechanism for entering a system safe state following an LVD interrupt. The LVD circuit can be
configured to generate an interrupt or a reset when low supply voltage has been detected.
62
Priority
NOTES:
Vector
Higher
Lower
1. The SPI module is not included on the MC9S08RC/RD/RE devices. This vector location is unused for those devices.
2. The analog comparator (ACMP) module is not included on the MC9S08RD devices. This vector location is unused for
3. The SCI module is not included on the MC9S08RC devices. This vector location is unused for those devices.
those devices.
Number
Vector
through
16
31
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
$FFDE/FFDF
$FFEC/FFED
$FFC0/FFC1
$FFEA/FFEB
$FFEE/FFEF
$FFFC/FFFD
(High/Low)
$FFE0/FFE1
$FFE2/FFE3
$FFE4/FFE5
$FFE6/FFE7
$FFE8/FFE9
$FFFA/FFFB
$FFFE/FFFF
$FFF0/FFF1
$FFF2/FFF3
$FFF4/FFF5
$FFF6/FFF7
$FFF8/FFF9
Address
through
Vector Name
Vkeyboard2
Vkeyboard1
Table 5-1 Vector Summary
Vtpm1ch1
Vtpm1ch0
Vtpm1ovf
Vsci1err
Vacmp1
Vsci1tx
Vsci1rx
Vreset
Vspi1
Vcmt
Vswi
Vlvd
Virq
Vrti
MC9S08RC/RD/RE/RG
Module
ACMP
System
System
System
control
control
control
SPI
SCI
SCI
SCI
KBI2
KBI1
CMT
TPM
TPM
TPM
Core
IRQ
(1)
(3)
(3)
(3)
(2)
(available for user program)
Illegal address
Illegal opcode
Unused Vector Space
RESET pin
Instruction
Source
SPTEF
MODF
EOCF
TDRE
RDRF
CH1F
CH0F
LVDF
IRQF
SPIF
RTIF
IDLE
COP
KBF
KBF
ACF
TOF
SWI
LVD
OR
TC
NF
FE
PF
Enable
RSTPE
LVDRE
EOCIE
SPTIE
CH1IE
CH0IE
COPE
IRQIE
LVDIE
ORIE
SPIE
SPIE
KBIE
KBIE
ACIE
TCIE
NFIE
TOIE
RTIE
FEIE
PFIE
ILIE
RIE
TIE
—
—
—
Freescale Semiconductor
Low-voltage detect
Low-voltage detect
Real-time interrupt
Software interrupt
Keyboard 2 pins
Keyboard 1 pins
ACMP compare
Watchdog timer
TPM channel 1
TPM channel 0
Illegal address
Description
TPM overflow
Illegal opcode
SCI transmit
External pin
SCI receive
SCI error
IRQ pin
CMT
SPI