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Section 33 Power-Down Modes
R01UH0134EJ0400 Rev. 4.00 Page 1787 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
33.2.9 Software Reset Control Register (SWRSTCR)
SWRSTCR is an 8-bit readable/writable register that controls a software reset for the serial sound
interface and IEBus
TM
controller and the operation of the crystal resonator for audio.
Note: When writing to this register, see section 33.4, Usage Notes.
76543210
Bit:
Initial value:
R/W:
000000 0
R/W R R R/W R/W R/W R/W
0
R/W
-
AXT
ALE
-
SSIF3
SRST
SSIF2
SRST
SSIF0
SRST
SSIF1
SRST
IEB
SRST
Bit Bit Name
Initial
Value
R/W Description
7 AXTALE 0 R/W AUDIO_X1 Clock Control
Controls the function of AUDIO_X1 pin.
0: Runs the on-chip crystal oscillator/enables the
external clock input.
1: Halts the on-chip crystal oscillator/disables the
external clock input.
6, 5 All 0 R Reserved
This bit is always read as 0. The write value should
always be 0.
4 IEBSRST 0 R/W IEBus
TM
Controller Software Reset
Controls the IEBus
TM
controller reset with software.
0: The IEBus
TM
controller reset is canceled.
1: The IEBus
TM
controller is reset.
3 SSIF3SRST 0 R/W Serial Sound Interface Channel 3 Software Reset
Controls the serial sound interface channel 3 reset
with software.
0: The serial sound interface channel 3 reset is
canceled.
1: The serial sound interface channel 3 is reset.