E62655RUSB Renesas Electronics America, E62655RUSB Datasheet - Page 604
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E62655RUSB
Manufacturer Part Number
E62655RUSB
Description
EMULATOR BASE H8S/2655R W/USB
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Datasheet
1.E62655RUSB.pdf
(1093 pages)
Specifications of E62655RUSB
Contents
E6000 Emulator Unit and 4 Logic Probes
For Use With/related Products
H8S/2655R
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 604 of 1093
- Download datasheet (6Mb)
Section 13 Watchdog Timer
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 ( ), for input to TCNT.
Bit 2
CKS2
0
1
Note:
13.2.3
RSTCSR is an 8-bit readable/writable * register that controls the generation of the internal reset
signal when TCNT overflows, and selects the type of internal reset signal.
RSTCSR is initialized to H'1F by a reset signal from the RES pin, but not by the WDT internal
reset signal caused by overflows.
Note: * The method for writing to RSTCSR is different from that for general registers to
Rev. 5.00 Sep 14, 2006 page 574 of 1060
REJ09B0331-0500
Bit
Initial value
R/W
Note: * Can only be written with 0 for flag clearing.
* The overflow period is the time from when TCNT starts counting up from H'00 until
Reset Control/Status Register (RSTCSR)
Bit 1
CKS1
0
1
0
1
prevent inadvertent overwriting. For details see section 13.2.4, Notes on Register
Access.
overflow occurs.
:
:
:
R/(W) *
WOVF
Bit 0
CKS0
0
1
0
1
0
1
0
1
7
0
RSTE
R/W
Clock
Description
6
0
/2 (initial value)
/64
/128
/512
/2048
/8192
/32768
/131072
RSTS
R/W
5
0
Overflow Period (when
25.6 µs
819.2 µs
1.6 ms
6.6 ms
26.2 ms
104.9 ms
419.4 ms
1.68 s
—
—
4
1
—
—
3
1
—
—
2
1
= 20 MHz) *
—
—
1
1
—
—
0
1
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