Hitachi H8/3006 Hardware Manual page 79

Bits 6 to 4—Standby Timer Select 2 to 0 (STS2 to STS0): These bits select the length of time
the CPU and on-chip supporting modules wait for the internal clock oscillator to settle when
software standby mode is exited by an external interrupt.
When using a crystal oscillator, set these bits so that the waiting time will be at least 7 ms at the
system clock rate.
For further information about waiting time selection, see section 19.4.3, Selection of Waiting
Time for Exit from Software Standby Mode.
Bit 6 Bit 5
STS2 STS1
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
Bit 3—User Bit Enable (UE): Selects whether to use the UI bit in the condition code register as a
user bit or an interrupt mask bit.
Bit 3
UE Description
0 UI bit in CCR is used as an interrupt mask bit
1 UI bit in CCR is used as a user bit
Bit 2—NMI Edge Select (NMIEG): Selects the valid edge of the NMI input.
Bit 2
NMIEG Description
0 An interrupt is requested at the falling edge of NMI
1 An interrupt is requested at the rising edge of NMI
60
Bit 4
STS0 Description
0 Waiting time = 8,192 states
1 Waiting time = 16,384 states
0 Waiting time = 32,768 states
1 Waiting time = 65,536 states
0 Waiting time = 131,072 states
1 Waiting time = 262,144 states
0 Waiting time = 1,024 states
1 Illegal setting
(Initial value)
(Initial value)
(Initial value)