Datasheet

Section 10 14-Bit PWM Timer (PWMX)
Rev. 4.00 Sep 27, 2006 page 296 of 1130
REJ09B0327-0400
Bit 1—Carrier Frequency Select (CFS)
Bit 1
CFS Description
0 Base cycle = resolution (T) × 64
DADR range = H'0401 to H'FFFD
1 Base cycle = resolution (T) × 256
DADR range = H'0103 to H'FFFF
(Initial value)
DADRA Bit 0—Reserved: This bit cannot be modified and is always read as 1.
DADRB Bit 0—Register Select (REGS): DADRA and DACR, and DADRB and DACNT, are
located at the same addresses. The REGS bit specifies which registers can be accessed. The REGS
bit can be accessed regardless of whether DADRB or DACNT is selected.
Bit 0
REGS Description
0 DADRA and DADRB can be accessed
1 DACR and DACNT can be accessed (Initial value)
10.2.3 PWM D/A Control Register (DACR)
7
TEST
0
R/W
6
PWME
0
R/W
5
—
1
—
4
—
1
—
3
OEB
0
R/W
0
CKS
0
R/W
2
OEA
0
R/W
1
OS
0
R/W
Bit
Initial value
Read/Write
DACR is an 8-bit readable/writable register that selects test mode, enables the PWM outputs, and
selects the output phase and operating speed.
DACR is initialized to H'30 by a reset, and in the standby modes, watch mode, subactive mode,
subsleep mode, and module stop mode.
Bit 7—Test Mode (TEST): Selects test mode, which is used in testing the chip. Normally this bit
should be cleared to 0.