HD64F2168 Datasheet, PDF (788/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

23.12 Usage Notes
23.12.1 I/O Port Status
The status of the I/O ports is retained in software standby mode. Therefore, when a high level is
output, the current consumption is not reduced by the amount of current to support the high level
output.
23.12.2 Current Consumption when Waiting for Oscillation Settling
The current consumption increases during oscillation settling.
23.12.3 DTC Module Stop Mode
If the DTC module stop mode specification and DTC bus request occur simultaneously, the bus is
released to the DTC and the MSTP bit cannot be set to 1. After completing the DTC bus cycle, set
the MSTP bit to 1 again.
23.12.4 Notes on Subclock Usage
When using the subclock, make a transition to power-down mode after setting the EXCLE bit in
LPWRCR to 1 and loading the subclock two or more cycles. When not using the sublock, the
EXCLE bit should not be set to 1.
Rev. 3.00, 03/04, page 748 of 830