HD64570 HITACHI [Hitachi Semiconductor], HD64570 Datasheet - Page 72

• Manufacturer Part Number: HD64570
• Description: Serial Communications Adaptor
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 3.1 indicates the operational status of the main functional modules in each of the operating
modes.
Table 3.1
Operating Mode
Reset mode
Normal operating mode
System stop mode
Note:
3.2.2
The low-power register controls transition to system stop mode.
Rev. 0, 07/98, page 56 of 453
: operation enabled
: operation disabled
Low-Power Register (LPR)
Operational Status of On-Chip Functional Modules in Operating Modes
Note: IOSTP is bit 0 in the low power register (LPR).
Reset
mode
Figure 3.1 Chip Operating Mode Transitions
On-Chip DMAC
RESET = 0
operating
Normal
mode
MSCI
Functional Module
System
mode
stop
Timers