SH7108 Datasheet, PDF (191/560 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Section 8 Multifunction Timer Pulse Unit (MTU)
Table 8.28 Output Level Select Function
Bit 2
WF
0
1
Bit 1
VF
0
1
0
1
Bit 0
UF
0
1
0
1
0
1
0
1
Function
TIOC3B TIOC4A TIOC4B TIOC3D TIOC4C TIOC4D
U Phase V Phase W Phase U Phase V Phase W Phase
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
8.3.13 Timer Subcounter (TCNTS)
TCNTS is a 16-bit read-only counter that is used only in complementary PWM mode. The initial
value is H'0000.
Note: Accessing the TCNTS in 8-bit units is prohibited. Always access in 16-bit units.
8.3.14 Timer Dead Time Data Register (TDDR)
TDDR is a 16-bit register, used only in complementary PWM mode, that specifies the TCNT_3
and TCNT_4 counter offset values. In complementary PWM mode, when the TCNT_3 and
TCNT_4 counters are cleared and then restarted, the TDDR register value is loaded into the
TCNT_3 counter and the count operation starts. The initial value is H'FFFF.
Note: Accessing the TDDR in 8-bit units is prohibited. Always access in 16-bit units.
8.3.15 Timer Period Data Register (TCDR)
TCDR is a 16-bit register used only in complementary PWM mode. Set half the PWM carrier sync
value as the TCDR register value. This register is constantly compared with the TCNTS counter in
complementary PWM mode, and when a match occurs, the TCNTS counter switches direction
(decrement to increment). The initial value is H'FFFF.
Note: Accessing the TCDR in 8-bit units is prohibited. Always access in 16-bit units.
Rev.1.00 Sep. 18, 2008 Page 157 of 522
REJ09B0069-0100