HD6413008VF25 Datasheet, PDF (254/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

8. 16-Bit Timer
On-chip data bus
H
CPU L
Bus interface
H
L
Module
data bus
16TCNTH 16TCNTL
Figure 8.9 Access to Timer Counter L (CPU Reads 16TCNTL, Lower Byte)
8.3.2 8-Bit Accessible Registers
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.
On-chip data bus
H
CPU L
Bus interface
H
L
Module
data bus
16TCR
Figure 8.10 16TCR Access (CPU Writes to 16TCR)
Rev.4.00 Aug. 20, 2007 Page 208 of 638
REJ09B0395-0400