R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 334

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 9 16-Bit Timer Pulse Unit (TPU)
9.3.6
TCNT is a 16-bit readable/writable counter. The TPU has six TCNT counters, one for each
channel.
TCNT is initialized to H'0000 by a reset or in hardware standby mode.
TCNT cannot be accessed in 8-bit units. TCNT must always be accessed in 16-bit units.
9.3.7
TGR is a 16-bit readable/writable register with a dual function as output compare and input
capture registers. The TPU has 16 TGR registers, four each for channels 0 and 3 and two each for
channels 1, 2, 4, and 5. TGRC and TGRD for channels 0 and 3 can also be designated for
operation as buffer registers. The TGR registers cannot be accessed in 8-bit units; they must
always be accessed in 16-bit units. TGR and buffer register combinations during buffer operations
are TGRA−TGRC and TGRB−TGRD.
Rev. 3.00 Mar. 14, 2006 Page 296 of 804
REJ09B0104-0300
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial Value
R/W
Timer Counter (TCNT)
Timer General Register (TGR)
R/W
R/W
R/W
R/W
15
15
0
7
0
1
7
1
R/W
R/W
R/W
R/W
14
14
0
6
0
1
6
1
R/W
R/W
R/W
R/W
13
13
0
5
0
1
5
1
R/W
R/W
R/W
R/W
12
12
0
4
0
1
4
1
R/W
R/W
R/W
R/W
11
11
0
3
0
1
3
1
R/W
R/W
R/W
R/W
10
10
0
2
0
1
2
1
R/W
R/W
R/W
R/W
9
0
1
0
9
1
1
1
R/W
R/W
R/W
R/W
8
0
0
0
8
1
0
1