upd78f0148m1gka1-9eu Renesas Electronics Corporation., upd78f0148m1gka1-9eu Datasheet - Page 448

• Manufacturer Part Number: upd78f0148m1gka1-9eu
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

21.2.2 STOP mode
(1) STOP mode setting and operating statuses
Notes 1.
448
Item
System clock
CPU
Port (output latch)
16-bit timer/event counter 00
16-bit timer/event counter 01
8-bit timer/event counter 50
8-bit timer/event counter 51
8-bit timer H0
8-bit timer H1
Watch timer
Watchdog
timer
A/D converter
Serial interface
Clock monitor
Multiplier/divider
Power-on-clear function
Low-voltage detection function
External interrupt
The STOP mode is set by executing the STOP instruction, and it can be set when the CPU clock before the
setting was the X1 input clock or internal oscillation clock.
Caution Because the interrupt request signal is used to release the standby mode, if there is an
The operating statuses in the STOP mode are shown below.
2.
3.
4.
5.
6.
STOP Mode Setting
Internal oscillator
cannot be
stopped
Internal oscillator
can be stopped
When “Stopped by software” is selected for internal oscillator by a mask option and internal oscillator is
stopped by software (for mask options, see CHAPTER 27 MASK OPTIONS).
µ
Operable only when f
Operable when the subsystem clock is selected.
“Internal oscillator cannot be stopped” or “Internal oscillator can be stopped by software” can be selected
by a mask option.
When “POC used” is selected by a mask option.
PD780146, 780148, and 78F0148 only.
interrupt source with the interrupt request flag set and the interrupt mask flag reset, the
standby mode is immediately released if set. Thus, the STOP mode is reset to the HALT mode
immediately after execution of the STOP instruction and the system returns to the operating
mode as soon as the wait time set using the oscillation stabilization time select register (OSTS)
has elapsed.
UART0
UART6
CSI10
CSI11
CSIA0
Note 5
Note 6
Note 2
Note 2
Note 5
When Subsystem
Only X1 oscillator oscillation is stopped. Clock supply to the CPU is stopped.
Operation stopped
Status before STOP mode was set is retained
Operation stopped
Operation stopped
Operable only when TI50 is selected as the count clock
Operable only when TI51 is selected as the count clock
Operable only when TM50 output is selected as the count clock during 8-bit timer/event counter 50 operation
Operable
Operable
Operable
Operation stopped
Operation stopped
Operable only when TM50 output is selected as the serial clock during TM50 operation
Operable only when external SCK10 is selected as the serial clock
Operable only when external SCK11 is selected as the serial clock
Operation stopped
Operation stopped
Operation stopped
Operable
Operable
Operable
When STOP Instruction Is Executed While CPU Is Operating on X1 Input Clock
When Internal Oscillation Clock
Clock Used
R
Table 21-4. Operating Statuses in STOP Mode
/2
Note 3
Note 4
7
is selected as the count clock.
Continues
CHAPTER 21 STANDBY FUNCTION
When Subsystem
Operation stopped Operable
Clock Not Used
User’s Manual U15947EJ3V1UD
When Subsystem
Operation stopped
When Internal Oscillation Clock
Clock Used
Note 4
Stopped
−
When Subsystem
Operation stopped Operable
Clock Not Used
Note 1
When Subsystem
When STOP Instruction Is Executed
Operable
Operable
While CPU Is Operating on Internal
Clock Used
Note 3
Note 4
Oscillation Clock
When Subsystem
Operation stopped
Clock Not Used