DF2266TF13V Renesas Electronics America, DF2266TF13V Datasheet - Page 351
DF2266TF13V
Manufacturer Part Number
DF2266TF13V
Description
IC H8S/2266 MCU FLASH 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2266TF20V.pdf
(712 pages)
Specifications of DF2266TF13V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
13MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
67
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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12.4
During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).
The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. OVF must be
cleared to 0 in the interrupt handling routine.
If an NMI request has been chosen in the watchdog timer mode, an NMI request is generated
when a TCNT overflow occurs.
Table 12.1 WDT Interrupt Source
12.5
12.5.1
The watchdog timer’s TCNT and TCSR registers differ from other registers in being more
difficult to write to. The procedures for writing to and reading these registers are given below.
(1) Writing to TCNT and TCSR
Word transfer instructions must be used to write to TCNT and TCSR. These registers cannot be
written with byte transfer instructions. This is shown in figure 12.7.
For writing, TCNT and TCSR are allocated to the same address. To write to TCNT, transfer a
word in which the upper byte is H'5A and the lower byte is the write data. To write to TCSR,
transfer a word in which the upper byte is H'A5 and the lower byte is the write data. When these
transfer operations are performed, the lower byte data is written to TCNT or TCSR.
Name
WOVI
NMI
Interrupt Sources
Notes on Register Access
Usage Notes
Interrupt Source
TCNT overflow (interval timer mode)
TCNT overflow (watchdog timer mode)
Figure 12.7 Writing to TCNT, TCSR (WDT_0)
TCNT write
TCSR write
Address:
Address:
H'FF74
H'FF74
15
15
H'5A
H'A5
8 7
8 7
Rev. 5.00 Sep. 01, 2009 Page 299 of 656
Write data
Write data
Section 12 Watchdog Timer (WDT)
0
0
Interrupt Flag
OVF
OVF
REJ09B0071-0500
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