h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 1541

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Timing of Transition to Hardware Standby Mode
(1) To retain RAM contents with the RAME bit set to 1 in SYSCR, drive the
(2) To retain RAM contents with the RAME bit cleared to 0 in SYSCR, or when RAM contents
Timing of Recovery from Hardware Standby Mode
Drive the
goes high to execute a reset.
least 10 states before the
S T B Y
do not need to be retained,
Appendix E Timing of Transition to and Recovery from
STBY
RES
STBY
RES
NMI
R E S
signal goes low (delay from
signal low and the NMI signal high approximately 100 ns or more before
Figure E-2 Timing of Recovery from Hardware Standby Mode
Figure E-1 Timing of Transition to Hardware Standby Mode
Appendix E Timing of Transition to and Recovery from Hardware Standby Mode
S T B Y
Hardware Standby Mode
R E S
signal goes low, as shown below.
does not have to be driven low as in (1).
t
S T B Y
1
≥ 10 t
t ≥ 100 ns
cyc
low to
R E S
t
2
Rev. 6.00 Feb 22, 2005 page 1481 of 1484
≥ 0 ns
high: 0 ns or more).
t
OSC
R E S
t
NMIRH
must remain low until
R E S
REJ09B0103-0600
signal low at
S T B Y