Hitachi SH7032 - 8-Bit Accessible Registers

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10.3.2 8-Bit Accessible Registers
All registers other than the TCNT register, general registers, and buffer registers are 8-bit
registers. These are connected to the CPU by an 8-bit data bus. Figures 10.12 and 10.13 illustrate
reading and writing in byte units with the timer control register (TCR). These registers must be
accessed by byte access.
TCR
Bus
interface
Internal data bus
Module

data bus
CPU
Figure 10.12 TCR Access (CPU to TCR)
TCR
Bus
interface
Internal data bus
Module

data bus
CPU
Figure 10.13 TCR Access (TCR to CPU )