h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 501

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 16 Power-Down Modes
In addition to the normal program execution state, this LSI has power-down modes in which
operation of the CPU and oscillator is halted and power consumption is reduced. Low-power
operation can be achieved by individually controlling the CPU, on-chip peripheral modules, and
so on.
This LSI's operating modes are high-speed mode and four power down modes:
• Sleep mode
• Module stop mode
• Software standby mode
• Hardware standby mode
Sleep mode is a CPU state and module stop mode is an on-chip peripheral function state. A
combination of these modes can be set.
After a reset, this LSI is in high-speed mode.
Table 16.1 shows the internal states of this LSI in each mode. Figure 16.1 shows the mode
transition diagram.
Rev. 2.00, 03/04, page 469 of 534