H8S-2350 RENESAS [Renesas Technology Corp], H8S-2350 Datasheet - Page 484

• Manufacturer Part Number: H8S-2350
• Description: 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 10 16-Bit Timer Pulse Unit (TPU)
10.2.9
TSYR is an 8-bit readable/writable register that selects independent operation or synchronous
operation for the channel 0 to 5 TCNT counters. A channel performs synchronous operation when
the corresponding bit in TSYR is set to 1.
TSYR is initialized to H'00 by a reset, and in hardware standby mode.
Bits 7 and 6—Reserved: Should always be written with 0.
Bits 5 to 0—Timer Synchro 5 to 0 (SYNC5 to SYNC0): These bits select whether operation is
independent of or synchronized with other channels.
When synchronous operation is selected, synchronous presetting of multiple channels *
synchronous clearing through counter clearing on another channel *
Notes: n = 5 to 0
Rev. 3.00 Sep 15, 2006 page 450 of 988
REJ09B0330-0300
Bit n
SYNCn
0
1
Bit
Initial value
R/W
1. To set synchronous operation, the SYNC bits for at least two channels must be set to 1.
2. To set synchronous clearing, in addition to the SYNC bit, the TCNT clearing source
Timer Synchro Register (TSYR)
must also be set by means of bits CCLR2 to CCLR0 in TCR.
Description
TCNTn operates independently (TCNT presetting/clearing is unrelated to
other channels)
TCNTn performs synchronous operation
TCNT synchronous presetting/synchronous clearing is possible
:
:
:
—
—
7
0
—
—
6
0
SYNC5
R/W
5
0
SYNC4
R/W
4
0
SYNC3
R/W
3
0
2
SYNC2
are possible.
R/W
2
0
SYNC1
R/W
1
0
(Initial value)
1
, and
SYNC0
R/W
0
0