
CHAPTER 22 STANDBY FUNCTION
User’s Manual U16890EJ1V0UD
643
Table 22-8. Operation Status in Subclock Operation Mode
Operation Status
Setting of Subclock Operation
Item
Mode
When Main Clock Is Oscillating
When Main Clock Is Stopped
CPU
Operable
ROM correction
Operable
Subclock oscillator
Oscillation enabled
Interrupt controller
Operable
Timer P (TMP0)
Note 1
Operable
Stops operation
16-bit timers (TM00 to TM03)
Operable
TM00, TM02, TM03: Stop operation
TM01: Operable when INTWT is selected
as count clock and f
XT
is selected as count
clock of WT
8-bit timers (TM50, TM51)
Operable
Operable when TI5n is selected as count
clock
Operable when INTTM010 is selected as
count clock and when TM01 is enabled
in subclock operation mode
Timer H (TMH0)
Operable
Stops operation
Timer H (TMH1)
Operable
Operable when f
XT
is selected as count clock
Watch timer
Operable
Operable when f
XT
is selected as count clock
Watchdog timer 1
Operable
Stops operation
Watchdog timer 2
Operable
Operable when f
XT
is selected as count clock
CSI00, CSI01
Operable
Operable when SCK0n input clock is
selected as operation clock
CSIA0, CSIA1
Operable
Stops operation
I
2
C0
Note 2
Operable
Stops operation
UART0
Operable
Operable when ASCK0 is selected as
count clock
Serial interface
UART1
Operable
Stops operation
Key interrupt function
Operable
A/D converter
Operable
Stops operation
D/A converter
Operable
ch0: Operable when normal mode is
selected
ch1: Operable under the following
conditions
When normal mode is selected
When real-time output mode is selected
and f
XT
is selected as count clock of
TMH1
Real-time output
Operable
Operable when INTTM5n is selected as
real-time output trigger and TI5n is
selected as count clock of TM5n
Port function
Settable
External bus interface
Operable
Internal data
Settable
Notes 1.
Only in the
μ
PD703215, 703215Y, 70F3215H, 70F3215HY
2.
Only in the
μ
PD703212Y, 703213Y, 703214Y, 703215Y, 70F3214Y, 70F3214HY, 70F3215HY
Remark
n = 0, 1