SH7052 datasheet(424/919 Pages) RENESAS

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External Output Value in Software Standby Mode: In software standby mode, the ATU

TIO1A to TIO1H, TIO2A to TIO2H external output values are cleared to 0 immediately after

software standby mode is exited, other external output values and all registers are cleared to 0

immediately after a transition to software standby mode.

Also, when pin output is inverted by the pin function controller's port B invert register (PBIR) or

port K invert register (PKIR), the corresponding pins are cleared to 1.

Software standby mode

Other external

outputs

TIO1A to 1H,

TIO2A to 2H,

TIO11A, 11B

Figure 10.74 External Output Value Transition Points in Relation to Software Standby

Mode

Contention between TCNT Clearing from Channel 10 and TCNT Overflow: When a channel

1 or 2 free-running counter (TCNT1A, TCNT1B, TCNT2A, TCNT2B) overflows, it is cleared to

H'0000. If a clear signal from the channel 10 correction counter clear register (TCCLR) is input at

the same time, a 1 write to the interrupt status flag (OVF) due to the overflow is still performed in

the same way as for a normal overflow.

Contention between Channel 10 Reload Register Transfer Timing and Write: If there is

contention between a multiplied-output transfer from the input capture register (ICR10A) to the

channel 10 reload register (RLDR10C), and the timing of a CPU write to that register, the CPU

write has priority and the multiplied output is ignored.

Contention between Channel 10 Reload Timing and Write to TCNT10C: If there is contention

between a multiplied-output transfer from the input capture register (ICR10A) to the channel 10

reload register (RLDR10C), and a CPU write to the reload counter (TCNT10C), the CPU write

has priority and the multiplied output is ignored.

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