r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 806

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 Programmable Pulse Generator (PPG)
12.3.3
NDRH, NDRL store the next data for pulse output. The NDR addresses differ depending on
whether pulse output groups have the same output trigger or different output triggers.
• NDRH (NDRHH, NDRHL)*
Note: * When pulse output groups 2 and 3 have the same output trigger by PCR settings, the
Rev. 1.00 Sep. 19, 2008 Page 778 of 1270
REJ09B0466-0100
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3 to 0
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 3 have different output triggers, upper 4 bits and lower 4 bits are
mapped to the different addresses as shown below.
Bit Name
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
Bit Name
NDR15
NDR14
NDR13
NDR12
—
Next Data Registers H, L (NDRH, NDRL)
NDRH address is H′FF4C. When they have different output triggers, the NDRH
addresses corresponding to the groups 2 and 3 are NDRHH (H′FF4E) and NDRHL
(H′FF4C), respectively. Also, when pulse output groups 0 and 1 have the same output
trigger by PCR settings, the NDRL address is NDRLH (H′FF4D). When they have
different output triggers, the NDRL addresses corresponding to the groups 0 and 1 are
NDRLL (H′FF4F) and H′FF4D, respectively.
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 15 to 8
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
Description
Next Data Register 15 to 12
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
Reserved
1 is always read and write is disabled.