RX610 Group
8. Low Power Consumption
R01UH0032EJ0120 Rev.1.20
Page 174 of 1006
Feb 20, 2013
8.2.1
Standby Control Register (SBYCR)
b15
b14
b13
b12
b11
b10
b9
b8
Value after reset:
0
1
0
1
0
1
1
1
b7
b6
b5
b4
b3
b2
b1
b0
Value after reset:
0
0
0
0
0
0
0
0
—
—
—
—
—
—
—
—
SSBY
OPE
—
Address: 0008 000Ch
STS[4:0]
Bit
Symbol
Bit Name
Description
R/W
b7 to b0
Reserved
These bits are always read as 0. The write value should
always be 0.
R/W
b12 to b8 STS[4:0]
Standby Timer Select
b12
b8
0 0 1 0 1: Waiting time = 64 states
0 0 1 1 0: Waiting time = 512 states
0 0 1 1 1: Waiting time = 1024 states
0 1 0 0 0: Waiting time = 2048 states
0 1 0 0 1: Waiting time = 4096 states
0 1 0 1 0: Waiting time = 16384 states
0 1 0 1 1: Waiting time = 32768 states
0 1 1 0 0: Waiting time = 65536 states
0 1 1 0 1: Waiting time = 131072 states
0 1 1 1 0: Waiting time = 262144 states
0 1 1 1 1: Waiting time = 524288 states
Settings other than above are prohibited.
R/W
b13
Reserved
This bit is always read as 0. The write value should always
be 0.
R/W
b14
OPE
Output Port Enable
0: In software standby mode or deep software standby
mode, the address bus and bus control signals are set to
the high-impedance state.
1: In software standby mode or deep software standby
mode, the address bus and bus control signals retain the
output state.
R/W
b15
SSBY
Software Standby
0: Shifts to sleep mode or all-module clock stop mode
after the WAIT instruction is executed
1: Shifts to software standby mode after the WAIT instruction
is executed
R/W
SBYCR is used to control software standby mode.