RX610 Group
8. Low Power Consumption
R01UH0032EJ0120 Rev.1.20
Page 187 of 1006
Feb 20, 2013
8.2.10
Reset Status Register (RSTSR)
Address: 0008 C285h
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
DPSRSTF
—
—
—
—
—
—
—
0
Bit
Symbol
Bit Name
Description
R/W
b6 to b0
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W
b7
DPSRSTF
Deep Software
Standby Reset Flag
0: No deep software standby mode canceling source by an
external interrupt is generated
1: A deep software standby mode canceling source by an
external interrupt is generated
R/(W)
*
Note:
*
Only 0 can be written to clear the flag.
RSTSR indicates an internal reset generation source.
DPSRSTF Flag (Deep Software Standby Reset Flag)
The DPSRSTF flag indicates that deep software standby mode has been canceled by an external interrupt source
specified by DPSIER and DPSIEGR and an internal reset has been generated.
This flag is initialized by the reset signal from the RES# pin, but is not initialized by the internal reset signal that cancels
deep software standby mode.
[Setting condition]
•
When deep software standby mode is canceled by an external interrupt source
[Clearing condition]
•
When this bit is read as 1 and then written by 0
8.2.11
Deep Standby Backup Register (DPSBKRy) (y = 0 to 31)
Address: 0008 C290h to 0008 C2AFh
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
x
x
x
x
x
x
x
BKUPm7
BKUPm6
BKUPm5
BKUPm4
BKUPm3
BKUPm2
BKUPm1
BKUPm0
x
DPSBKRy is an 8-bit readable/writable register to store data during deep software standby mode.
The value of this register is retained even in deep software standby mode where on-chip RAM data is not retained.
DPSBKRy is not initialized and the register value is undefined immediately after power-on.