HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 333
HD64F38024DV
Manufacturer Part Number
HD64F38024DV
Description
IC H8/SLP MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheets
1.US38024-BAG1.pdf
(684 pages)
2.DF36012GFYV.pdf
(1021 pages)
3.DF38102HV.pdf
(145 pages)
Specifications of HD64F38024DV
Core Processor
H8/300L
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI
Peripherals
LCD, PWM, WDT
Number Of I /o
51
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F38024DV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 333 of 684
- Download datasheet (5Mb)
9.6.3
The watchdog timer has an 8-bit counter (TCW) that is incremented by clock input. The input
clock is selected by the WDCKS in port mode register 2 (PMR2): on the H8/38024, H8/38024S,
and H8/38024R Group, φ/8192 is selected when WDCKS is cleared to 0, and φw/32 when set to 1.
On the H8/38124 Group, if WDCKS is cleared to 0 the clock selection is specified by the setting
of timer mode register W (TMW), and if WDCKS is set to 1 the φw/32 clock source is selected.
When TCSRWE = 1 in TCSRW, if 0 is written in B2WI and 1 is simultaneously written in
WDON, TCW starts counting up. (Write access to TCSRW is required twice to turn on the
watchdog timer. However, on the H8/38124 Group WDON is set to 1 after a reset is cancelled,
TCW starts to be incremented even without gaining write access to TCSRW.) When the TCW
count value reaches H'FF, the next clock input causes the watchdog timer to overflow, and an
internal reset signal is generated one base clock (φ or φ
output for 512 clock cycles of the φ
count up from the written value. The overflow period can be set in the range from 1 to 256 input
clocks, depending on the value written in TCW.
Figure 9.18 shows an example of watchdog timer operations.
Timer Operation
Internal reset
signal
TCW count
value
H'FF
H'00
Figure 9.18 Typical Watchdog Timer Operations (Example)
Example: φ = 2 MHz and the desired overflow period is 30 ms.
The value set in TCW should therefore be 256 − 8 = 248 (H'F8).
H'F8
H'F8 is written
in TCW
2 • 10
8192
Start
OSC
6
• 30 • 10
clock. It is possible to write to TCW, causing TCW to
H'F8 is written in TCW
−3
= 7.3
SUB
Rev. 8.00 Mar. 09, 2010 Page 311 of 658
) cycle later. The internal reset signal is
512 φ
OSC
Reset
TCW overflow
clock cycles
REJ09B0042-0800
Section 9 Timers
Related parts for HD64F38024DV
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT STARTER FOR M16C/29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/2D
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
R0K33062P STARTER KIT
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/23 E8A
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C/25
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER H8S2456 SHARPE DSPLY
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C38C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8C35C
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R8CL3AC+LCD APPS
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR RX610
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR R32C/118
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT DEV RSK-R8C/26-29
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR SH7124
Manufacturer:
Renesas Electronics America
Datasheet:
Part Number:
Description:
KIT STARTER FOR H8SX/1622
Manufacturer:
Renesas Electronics America
Datasheet: