h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 483
h8s-2635
Manufacturer Part Number
h8s-2635
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2635.pdf
(1547 pages)
- Current page: 483 of 1547
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Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available only in
WDT0 TCSR Bit 3—Reserved: A read operation on this bit always causes a 1 to be read out.
Every write operation on this bit is invalidated.
WDT1 TCSR Bit 3—Reset or NMI (RST/
reset request and an NMI request when the TCNT overflows during the watchdog timer mode.
Bits 2 to 0—Clock Select 2 to 0 (CKS2 to CKS0): These bits select one of eight internal clock
sources, obtained by dividing the system clock ( ) or subclock * ( SUB), for input to TCNT.
Note: * Subclock functions (subactive mode, subsleep mode, and watch mode) are available in the
WDT1 TCSR
Bit 4
PSS
0
1
Bit 3
RST/
0
1
N M I
the U-mask and W-mask versions, but are not available in the other versions.
U-mask and W-mask versions, and H8S/2635 Group only.
These functions cannot be used with the other versions, and in them the PSS bit is
reserved. Only 0 should be written to this bit.
Description
The TCNT counts frequency-division clock pulses of the
prescaler (PSM)
The TCNT counts frequency-division clock pulses of the
(PSS)
Description
NMI request
Internal reset request
N M I
) : This bit is used to choose between an internal
Rev. 6.00 Feb 22, 2005 page 423 of 1484
Section 12 Watchdog Timer
based
SUB * -based prescaler
REJ09B0103-0600
(Initial value)
(Initial value)
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