DEMO9S08DZ60 Freescale Semiconductor, DEMO9S08DZ60 Datasheet - Page 311

• Manufacturer Part Number: DEMO9S08DZ60
• Description: BOARD DEMO
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08DZ60

• Contents: Board, Cable, CD
• Processor To Be Evaluated: MC9S08DZ60
• Interface Type: RS-232, USB
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08D
• Kit Contents: MC9S08DZ60 Board, Software, Cables, Connectors
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08DZ60
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

15.1.2
Features of the RTC module include:
15.1.3
This section defines the operation in stop, wait and background debug modes.
15.1.3.1
The RTC continues to run in wait mode if enabled before executing the appropriate instruction. Therefore,
the RTC can bring the MCU out of wait mode if the real-time interrupt is enabled. For lowest possible
current consumption, the RTC should be stopped by software if not needed as an interrupt source during
wait mode.
15.1.3.2
The RTC continues to run in stop2 or stop3 mode if the RTC is enabled before executing the STOP
instruction. Therefore, the RTC can bring the MCU out of stop modes with no external components, if the
real-time interrupt is enabled.
The LPO clock can be used in stop2 and stop3 modes. ERCLK and IRCLK clocks are only available in
stop3 mode.
Power consumption is lower when all clock sources are disabled, but in that case, the real-time interrupt
cannot wake up the MCU from stop modes.
15.1.3.3
The RTC suspends all counting during active background mode until the microcontroller returns to normal
user operating mode. Counting resumes from the suspended value as long as the RTCMOD register is not
written and the RTCPS and RTCLKS bits are not altered.
Freescale Semiconductor
•
•
8-bit up-counter
— 8-bit modulo match limit
— Software controllable periodic interrupt on match
Three software selectable clock sources for input to prescaler with selectable binary-based and
decimal-based divider values
— 1-kHz internal low-power oscillator (LPO)
— External clock (ERCLK)
— 32-kHz internal clock (IRCLK)
Features
Modes of Operation
Wait Mode
Stop Modes
Active Background Mode
MC9S08DZ60 Series Data Sheet, Rev. 4
Chapter 15 Real-Time Counter (S08RTCV1)
311