Renesas M16C Series User Manual page 294

M30240 Group
priority level (IPL), and enable the interrupt enable flag (I flag). When an interrupt clears a mode, that
interrupt is processed. Table 2.40 shows the interrupts that can be used for clearing stop mode and wait
mode.
2.12.1.4 Internal clock Φ in returning from wait mode or stop mode
(a) Returning from wait mode
The processor immediately returns to the Internal clock Φ, which was in use before entering wait
mode.
(b) Returning from stop mode
CM06 is set to "1" when the device enters stop mode. CM17 and CM16 do not change state. In this
case, when restored from stop mode, the device starts operating in divided-by-8 mode.
Table 2.42: Interrupts available for clearing stop mode and wait mode
Interrupt for clearing
Bus collision detection interrupt
DMA0 interrupt
DMA1 interrupt
Key input interrupt
A-D interrupt
UART0 transmit interrupt
UART0 receive interrupt
UART1 transmit interrupt
UART1 receive interrupt
UART2 transmit interrupt
UART2 receive interrupt
Timer A0 interrupt
Timer A1 interrupt
Timer A2 interrupt
Timer A3 interrupt
Timer A4 interrupt
Timer B0 interrupt
Timer B1 interrupt
USB Reset interrupt
USB Suspend interrupt
USB Resume interrupt
USB Start of Frame
USB Function
INT0 interrupt
INT1 interrupt
NMI interrupt
Note 1: Can be used when an external clock in clock synchronous serial I/O mode is selected.
Note 2: Can be used when the external signal is being counted in event counter mode.
Note 3: Can be used in one-shot mode and one-shot sweep mode.
Note 4: Can be used only in USB suspend mode.
2.12.1.5 Sequence of returning from stop mode
The sequence for returning from stop mode consists of oscillation start-up time and the interrupt
Rev.1.00 Sep 24, 2003 Page 276 of 360
Wait mode
CM02 = 0
Supported
Not Supported
Not Supported
Supported
Note 3
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
CM02 = 1
Note 1
Not Supported
Not Supported
Supported
Not Supported
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 2
Note 2
Note 2
Note 2
Note 2
Note 2
Note 2
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Supported
Power Control
Stop mode
Note 1
Not Supported
Not Supported
Supported
Not Supported
Note 1
Note 1
Note 1
Note 1
Note 1
Note 1
Note 2
Note 2
Note 2
Note 2
Note 2
Note 2
Note 2
Not Supported
NotSupported
Note 4
Not Supported
Not Supported
Supported
Supported
Supported