HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 403
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 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
-
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14.2
The WDT has the pins listed in table 14.1.
Table 14.1 Pin Configuration
14.3
The WDT has the following registers. To prevent accidental overwriting, TCSR and TCNT have
to be written to in a method different from normal registers. For details, refer to section 14.6.1,
Notes on Register Access. For details on the system control register, refer to section 3.2.2, System
Control Register (SYSCR).
14.3.1
TCNT is an 8-bit readable/writable up-counter.
TCNT is initialized to H'00 when the TME bit in the timer control/status register (TCSR) is
cleared to 0.
Name
Reset output pin
External sub-clock input
pin
Timer counter (TCNT)
Timer control/status register (TCSR)
Register Descriptions
Timer Counter (TCNT)
Input/Output Pins
Symbol
RESO
EXCL
I/O
Output
Input
Function
Outputs the counter overflow signal in
watchdog timer mode
prescaler counter
Inputs the clock pulses to the WDT_1
Rev. 3.00 Mar 21, 2006 page 347 of 788
Section 14 Watchdog Timer (WDT)
REJ09B0300-0300
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