Datasheet

Section 12 Programmable Pulse Generator (PPG)
R01UH0309EJ0500 Rev. 5.00 Page 803 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
12.3.3 Next Data Registers H and L (NDRH, NDRL)
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.
• NDRH (NDRHH, NDRHL)*
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.
Bit Bit Name Initial Value R/W Description
7
6
5
4
3
2
1
0
NDR15
NDR14
NDR13
NDR12
NDR11
NDR10
NDR9
NDR8
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Next Data Register 15 to 8
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
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.
• NDRHH*
Bit Bit Name Initial Value R/W Description
7
6
5
4
NDR15
NDR14
NDR13
NDR12
0
0
0
0
R/W
R/W
R/W
R/W
Next Data Register 15 to 12
The register contents are transferred to the
corresponding PODRH bits by the output trigger
specified with PCR.
3 to 0 ⎯ All 1 ⎯ Reserved
1 is always read and write is disabled.