r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 799

• Manufacturer Part Number: r4f2456
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

12.3.3
NDRH and 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.
•
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.
Note: * When pulse output groups 2 and 3 have the same output trigger by PCR settings, the
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
7
6
5
4
3
2
1
0
NDRH (NDRHH, NDRHL)*
Bit Name
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
Next Data Registers H and 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.
0
0
0
0
0
0
0
0
Initial Value
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.
Section 12 Programmable Pulse Generator (PPG)
Rev. 1.00 Sep. 19, 2008 Page 769 of 1342
REJ09B0467-0100