DEMO9RS08KA2 Freescale Semiconductor, DEMO9RS08KA2 Datasheet - Page 24

• Manufacturer Part Number: DEMO9RS08KA2
• Description: DEMO BOARD FOR 9RS08KA2
• Manufacturer: Freescale Semiconductor
• Series: RS08r
• Type: MCUr

Specifications of DEMO9RS08KA2

• Contents: Board, Cable, CD, Documentation, Sample ICs
• Processor To Be Evaluated: RS08KA2
• Data Bus Width: 8 bit
• Interface Type: USB
• Silicon Manufacturer: Freescale
• Core Architecture: RS08
• Core Sub-architecture: RS08
• Silicon Core Number: MC9RS08
• Silicon Family Name: RS08KA
• Rohs Compliant: Yes
• For Use With/related Products: MC9RS08KA2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 3 Modes of Operation
the IREFSTEN bit. For the ICS to run in stop, the LVDE and LVDSE bits in the SPMSC1 must both be
set before entering stop.
3.6.1
Entry into active background mode from run mode is enabled if the ENBDM bit in BDCSCR is set. This
register is described in the
executes a STOP instruction, the system clocks to the background debug logic remain active when the
MCU enters stop mode so background debug communication is still possible. In addition, the voltage
regulator does not enter its low-power standby state; it maintains full internal regulation.
Most background commands are not available in stop mode. The memory-access-with-status commands
do not allow memory access, but they report an error indicating that the MCU is in either stop or wait
mode. The BACKGROUND command can be used to wake the MCU from stop and enter active
background mode if the ENBDM bit is set. After active background mode is entered, all background
commands are available.
Table 3-3
enabled.
3.6.2
The LVD system is capable of generating either an interrupt or a reset when the supply voltage drops below
the LVD voltage. If the LVD is enabled in stop (LVDE and LVDSE bits in SPMSC1 both set) at the time
the CPU executes a STOP instruction, the voltage regulator remains active.
Table 3-4
24
Mode
Mode
Stop
Stop
summarizes the behavior of the MCU in stop when entry into the active background mode is
summarizes the behavior of the MCU in stop when LVD reset is enabled.
Active BDM Enabled in Stop Mode
LVD Enabled in Stop Mode
Standby
Standby
CPU
CPU
Development Support
Peripherals
Peripherals
Table 3-3. BDM Enabled Stop Mode Behavior
Table 3-4. LVD Enabled Stop Mode Behavior
Standby
Standby
Digital
Digital
MC9RS08KA2 Series Data Sheet, Rev. 4
Optionally
ICS
ICS
On
on
chapter of this data sheet. If ENBDM is set when the CPU
Optionally
Optionally
ACMP
ACMP
on
on
Regulator
Regulator
On
On
States held Optionally on
States held Optionally on
I/O Pins
I/O Pins
Freescale Semiconductor
RTI
RTI