HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 252

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

8. 16-Bit Timer
8.3.2
The registers other than the timer counters and general registers are 8-bit registers. These registers
are linked to the CPU by an internal 8-bit data bus.
Figures 8.10 and 8.11 show examples of byte read and write access to a 16TCR.
If a word-size data transfer instruction is executed, two byte transfers are performed.
Rev.4.00 Aug. 20, 2007 Page 208 of 638
REJ09B0395-0400
CPU
CPU
On-chip data bus
On-chip data bus
Figure 8.9 Access to Timer Counter L (CPU Reads 16TCNTL, Lower Byte)
8-Bit Accessible Registers
H
L
H
L
Figure 8.10 16TCR Access (CPU Writes to 16TCR)
Bus interface
Bus interface
16TCNTH
16TCR
16TCNTL
H
L
H
L
Module
data bus
Module
data bus