R01UH0823EJ0100 Rev.1.00
Page 230 of 1823
Jul 31, 2019
RX23W Group
11. Low Power Consumption
11.2.5
Module Stop Control Register D (MSTPCRD)
Note:
Set the PRCR.PRC1 bit to 1 (write enabled) before rewriting this register.
Note 1. When the main clock oscillator is used by the serial sound interface
This bit should be rewritten when the oscillation of the main clock oscillator is stable. When entering software standby mode
after rewriting this bit, wait for two cycles of the main clock after rewriting, and execute a WAIT instruction. When stopping the
main clock oscillator after rewriting this bit, wait for two cycles of the main clock after rewriting, and stop the main clock oscillator.
Note 2. This bit is reserved in chip version A. Set this bit once to 0 at the beginning of the program to initialize unused circuits.
Note 3. Set this bit once to 0 at the beginning of the program to initialize unused circuits even if the Trusted Secure IP function is not
used in chip version B.
Address(es): 0008 001Ch
b31
b30
b29
b28
b27
b26
b25
b24
b23
b22
b21
b20
b19
b18
b17
b16
MSTPD
31
—
—
—
—
—
—
—
—
—
—
—
MSTPD
19
—
—
—
Value after reset:
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
MSTPD
15
—
—
—
—
MSTPD
10
—
—
—
—
—
—
—
—
—
—
Value after reset:
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b7 to b0
—
Reserved
These bits are read as 0. The write value should be 0.
R/W
b9, b8
—
Reserved
These bits are read as 1. The write value should be 1.
R/W
b10
Touch Sensor Control Unit
Module Stop
Target module: CTSU
0: This module clock is enabled
1: This module clock is disabled
R/W
b14 to b11 —
Reserved
These bits are read as 1. The write value should be 1.
R/W
b15
Serial Sound Interface
Module Stop
Target module: SSI
0: This module clock is enabled
1: This module clock is disabled
R/W
b18 to b16 —
Reserved
These bits are read as 1. The write value should be 1.
R/W
b19
SD Host Interface (SDHI)
Module Stop
Target module: SDHI
0: This module clock is enabled
1: This module clock is disabled
R/W
b30 to b20 —
Reserved
These bits are read as 1. The write value should be 1.
R/W
b31
Trusted Secure IP Function
Module Stop*
Target module: Trusted Secure IP
0: This module clock is enabled
1: This module clock is disabled
R/W