h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 370

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 10 16-Bit Timer Pulse Unit (TPU)
Bit 4—Buffer Operation A (BFA): Specifies whether TGRA is to operate in the normal way, or
TGRA and TGRC are to be used together for buffer operation. When TGRC is used as a buffer
register, TGRC input capture/output compare is not generated.
In channels 1, 2, 4, and 5, which have no TGRC, bit 4 is reserved. It is always read as 0 and
cannot be modified.
Bits 3 to 0—Modes 3 to 0 (MD3 to MD0): These bits are used to set the timer operating mode.
Notes: 1. MD3 is a reserved bit. In a write, it should always be written with 0.
Rev. 6.00 Feb 22, 2005 page 310 of 1484
REJ09B0103-0600
Bit 4
BFA
0
1
Bit 3
MD3 *
0
1
1
2. Phase counting mode cannot be set for channels 0 and 3. In this case, 0 should always
Bit 2
MD2 *
0
1
*
be written to MD2.
Description
TGRA operates normally
TGRA and TGRC used together for buffer operation
2
Bit 1
MD1
0
1
0
1
*
Bit 0
MD0
0
1
0
1
0
1
0
1
*
Description
Normal operation
Reserved
PWM mode 1
PWM mode 2
Phase counting mode 1
Phase counting mode 2
Phase counting mode 3
Phase counting mode 4
—
(Initial value)
(Initial value)
*: Don’t care