upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 147

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

6.4.3 IDLE mode
(1) Settings and operating states
(2) Release of IDLE mode
CPU
Clock generator
16-bit timer (TM0)
16-bit timer (TM1)
8-bit timer (TM2)
8-bit timer (TM3)
8-bit timer (TM4)
8-bit timer (TM5)
Watch timer
Watchdog timer
Serial
interface
A/D converter
DMA0 to DMA2
Real-time output
Item
Note Available only in the
This mode stops the entire system except the watch timer by stopping the on-chip main clock supply while the
clock oscillator is still operating. Supply to the subclock continues. When this mode is released, there is no need
for the oscillator to wait for the oscillation stabilization time, so normal operation can be resumed quickly.
In IDLE mode, program execution is stopped and the contents of all registers and internal RAM are retained as
they were just before IDLE mode was set. In addition, on-chip peripheral functions are stopped (except for
peripheral functions that are operating with the subclock).
acknowledged.
When the IDLE bit of the power save control register (PSC) is set to 1, the system switches to IDLE mode.
The operating statuses in IDLE mode are listed in Table 6-2.
IDLE mode can be released by a non-maskable interrupt, an unmasked interrupt request output from an on-chip
peripheral I/O that can be operated, or RESET pin input.
70F3017AY
IDLE Mode Settings
CSI0 to CSI2
I
UART0,
UART1
2
C
Note
Stopped
Both main clock and subclock oscillator
Clock supply to CPU and on-chip peripheral functions is stopped
Operates when INTWTI is selected as count
clock (f
Stopped
Stopped
Stopped
Operates when f
Operates when f
Operates when f
Stopped
Operates when an external clock is selected as the serial clock
Stopped
Operates when an external clock is selected as the baud rate clock (transmit only)
Stopped
Stopped
Operates when INTTM4 or INTTM5 is selected
(when TM4 or TM5 is operating)
Table 6-2. Operating Statuses in IDLE Mode (1/2)
µ
PD703014AY, 703014BY, 703015AY, 703015BY, 703017AY, 70F3015BY, and
CHAPTER 6 CLOCK GENERATION FUNCTION
XT
is selected for watch timer)
When Subclock Exists
XT
XT
XT
User’s Manual U12768EJ4V1UD
is selected for count clock
is selected for count clock
is selected for count clock
External bus hold requests (HLDRQ) are not
Stopped
Stopped
Stopped
Stopped
Stopped
When Subclock Does Not Exist
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