D12312SVTE25 Renesas Electronics America, D12312SVTE25 Datasheet - Page 452
D12312SVTE25
Manufacturer Part Number
D12312SVTE25
Description
MCU 3V 0K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Datasheet
1.D12312SVTE25V.pdf
(1146 pages)
Specifications of D12312SVTE25
Core Processor
H8S/2000
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
POR, PWM, WDT
Number Of I /o
70
Program Memory Type
ROMless
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Other names
HD6412312SVTE25
HD6412312SVTE25
HD6412312SVTE25
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
D12312SVTE25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 11 Watchdog Timer
11.2
11.2.1
TCNT is an 8-bit readable/writable *
When the TME bit is set to 1 in TCSR, TCNT starts counting pulses generated from the internal
clock source selected by bits CKS2 to CKS0 in TCSR. When the count overflows (changes from
H'FF to H'00), either the watchdog timer overflow signal (WDTOVF) *
interrupt (WOVI) is generated, depending on the mode selected by the WT/IT bit in TCSR.
TCNT is initialized to H'00 by a reset, in hardware standby mode, or when the TME bit is cleared
to 0. It is not initialized in software standby mode.
Notes: 1. TCNT is write-protected by a password to prevent accidental overwriting. For details
Rev.7.00 Feb. 14, 2007 page 418 of 1108
REJ09B0089-0700
Bit
Initial value :
R/W
2. The WDTOVF function is not available in the F-ZTAT versions.
Register Descriptions
Timer Counter (TCNT)
see section 11.2.4, Notes on Register Access.
:
:
R/W
7
0
R/W
6
0
1
up-counter.
R/W
5
0
R/W
4
0
R/W
3
0
R/W
2
or an interval timer
2
0
R/W
1
0
R/W
0
0
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