HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 329

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

10.6.11 Note on Writing in Synchronizing Mode
After synchronizing mode is selected, if TCNT is written by byte access, all 16 bits of all
synchronized counters assume the same value as the counter that was addressed.
Example: Figures 10.67 and 10.68 show byte write and word write when channels 2 and 3 are
synchronized
10.6.12 Note on Setting Reset-Synchronized PWM Mode/Complementary PWM Mode
When the CMD1 and CMD0 bits in TFCR are set, note the following.
1. Writes to CMD1 and CMD0 should be carried out while TCNT3 and TCNT4 are halted.
2. Changes of setting from reset-synchronized PWM mode to complementary PWM mode and
vice versa are prohibited. Set reset-synchronized PWM mode or complementary PWM mode
after first setting normal operation (clear CMD1 bit to 0).
TCNT2
TCNT3
TCNT2
TCNT3
Figure 10.68 Word Write to Channel 2 or Word Write to Channel 3
Figure 10.67 Byte Write to Channel 2 or Byte Write to Channel 3
Upper
Upper
byte
byte
W
W
Y
Y
Lower
Lower
byte
byte
X
X
Z
Z
Write A to upper
byte of channel 2
Write A to lower
byte of channel 3
Word write of AB
for channel 2 or 3
Section 10 16-Bit Integrated Timer Pulse Unit (ITU)
Rev. 7.00 Jan 31, 2006 page 303 of 658
TCNT2
TCNT3
TCNT2
TCNT3
TCNT2
TCNT3
Upper
Upper
Upper
byte
byte
byte
A
A
Y
Y
A
A
REJ09B0272-0700
Lower
Lower
Lower
byte
byte
byte
X
X
A
A
B
B