h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 358
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 358 of 766
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Section 11 Programmable Pulse Generator (PPG)
11.3.3
NDRH and NDRL are 8-bit readable/writable registers that store the data for the next pulse output.
The NDR addresses differ depending on whether pulse output groups have the same output trigger
or different output triggers.
• NDRH
If pulse output groups 2 and 3 have the same output trigger, all eight bits are mapped to the same
address and can be accessed at one time, as shown below.
If pulse output groups 2 and output pulse groups 3 have different output triggers, the upper 4 bits
and the lower 4 bits are mapped to different addresses, as shown below.
Rev. 2.00 Dec. 05, 2005 Page 320 of 724
REJ09B0200-0200
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3 to 0
Bit Name
Bit Name
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
NDR15
NDR14
NDR13
NDR12
Next Data Registers H, L (NDRH, NDRL)
Initial
Value
0
0
0
0
0
0
0
0
Initial
Value
0
0
0
0
All 1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Next Data Register 8 to 15
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
Description
Next Data Register 12 to 15
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
Reserved
These bits are always read as 1 and cannot be
modified.
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