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H8/3021 Datasheet(PDF) 634 Page - Renesas Technology Corp

Part # H8/3021
Description  16-Bit Single-Chip Microcomputer
PDF  712 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8/3021 Datasheet(HTML) 634 Page - Renesas Technology Corp

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Appendix B. Internal I/O Register Field
Rev.2.00 Mar. 22, 2007 Page 610 of 684
REJ09B0352-0200
TCNT0 H/L—Timer Counter 0 H/L
H'68, H'69
ITU0
Bit
Initial value
Read/Write
14
0
R/W
12
0
R/W
10
0
R/W
8
0
R/W
6
0
R/W
0
0
R/W
4
0
R/W
2
0
R/W
Up-counter
15
0
R/W
13
0
R/W
11
0
R/W
9
0
R/W
7
0
R/W
1
0
R/W
5
0
R/W
3
0
R/W
GRA0 H/L—General Register A0 H/L
H'6A, H'6B
ITU0
Bit
Initial value
Read/Write
14
1
R/W
12
1
R/W
10
1
R/W
8
1
R/W
6
1
R/W
0
1
R/W
4
1
R/W
2
1
R/W
Output compare or input capture register
15
1
R/W
13
1
R/W
11
1
R/W
9
1
R/W
7
1
R/W
1
1
R/W
5
1
R/W
3
1
R/W
GRB0 H/L—General Register B0 H/L
H'6C, H'6D
ITU0
Bit
Initial value
Read/Write
14
1
R/W
12
1
R/W
10
1
R/W
8
1
R/W
6
1
R/W
0
1
R/W
4
1
R/W
2
1
R/W
Output compare or input capture register
15
1
R/W
13
1
R/W
11
1
R/W
9
1
R/W
7
1
R/W
1
1
R/W
5
1
R/W
3
1
R/W
TCR1—Timer Control Register 1
H'6E
ITU1
Bit
Initial value
Read/Write
7
—
1
—
6
CCLR1
0
R/W
5
CCLR0
0
R/W
4
CKEG1
0
R/W
3
CKEG0
0
R/W
0
TPSC0
0
R/W
2
TPSC2
0
R/W
1
TPSC1
0
R/W
Note: Bit functions are the same as for ITU0.



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