Datasheet

Section 6 Power-Down Modes
REJ09B0465-0300 Rev. 3.00 Page 143 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Bit Symbol Bit Name Description R/W
2 MSTDTC DTC module
standby
0: Operating state
1: Standby state
R/W
1, 0 ⎯ Reserved These bits are read as 0. The write value should be 0. ⎯
Note: * When a peripheral module is in the module standby state, the registers of the module
cannot be accessed.
• MSTWDT bit (watchdog timer module standby)
When this bit is set to 1, the WDT enters the standby state. Note that if the low-speed OCO is
selected as the WDT count clock, the WDT operates regardless of the setting of this bit but the
WDT registers cannot be accessed.
• MSTAD1 bit (A/D converter unit 1 module standby)
When this bit is set to 1, A/D converter unit 1 enters the standby state.
• MSTAD2 bit (A/D converter unit 2 module standby)
When this bit is set to 1, A/D converter unit 2 enters the standby state.
A/D converter unit 2 is not available on the H8S/20103, H8S/20203, H8S/20115, and
H8S/20215 Groups; this bit is reserved on these devices. For a write-access, write 1 to this bit.
• MSTDA bit (D/A converter module standby)
When this bit is set to 1, the D/A converter enters the standby state.
• MSTDTC bit (DTC module standby)
When this bit is set to 1, the DTC enters the standby state.