HD64F2149 Datasheet, PDF (322/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

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.
Bit 7
TEST
0
1
Description
PWM (D/A) in user state: normal operation
PWM (D/A) in test state: correct conversion results unobtainable
(Initial value)
Bit 6—PWM Enable (PWME): Starts or stops the PWM (D/A) counter (DACNT).
Bit 6
PWME
0
1
Description
DACNT operates as a 14-bit up-counter
DACNT halts at H'0003
(Initial value)
Bits 5 and 4—Reserved: These bits cannot be modified and are always read as 1.
Bit 3—Output Enable B (OEB): Enables or disables output on PWM (D/A) channel B.
Bit 3
OEB
0
1
Description
PWM (D/A) channel B output (at the PWX1 pin) is disabled
PWM (D/A) channel B output (at the PWX1 pin) is enabled
(Initial value)
Bit 2—Output Enable A (OEA): Enables or disables output on PWM (D/A) channel A.
Bit 2
OEA
0
1
Description
PWM (D/A) channel A output (at the PWX0 pin) is disabled
PWM (D/A) channel A output (at the PWX0 pin) is enabled
(Initial value)
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