HD64F3067RF20 Renesas Electronics America, HD64F3067RF20 Datasheet - Page 493
HD64F3067RF20
Manufacturer Part Number
HD64F3067RF20
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.DF3067RF20VTR.pdf
(965 pages)
Specifications of HD64F3067RF20
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
70
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K 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-QFP
Package
100PQFP
Family Name
H8
Maximum Speed
20 MHz
Operating Supply Voltage
5 V
Data Bus Width
16|32 Bit
Number Of Programmable I/os
70
Interface Type
SCI
On-chip Adc
8-chx10-bit
On-chip Dac
2-chx8-bit
Number Of Timers
7
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
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12.2.4
The watchdog timer’s TCNT, TCSR, and RSTCSR registers differ from other registers in being
more difficult to write. The procedures for writing and reading these registers are given below.
Writing to TCNT and TCSR: These registers must be written by a word transfer instruction.
They cannot be written by byte instructions. Figure 12.2 shows the format of data written to
TCNT and TCSR. TCNT and TCSR both have the same write address. The write data must be
contained in the lower byte of the written word. The upper byte must contain H'5A (password for
TCNT) or H'A5 (password for TCSR). This transfers the write data from the lower byte to TCNT
or TCSR.
TCNT write
TCSR write
Note:
Notes on Register Access
Address
Address
*
Lower 20 bits of the address in advanced mode.
Figure 12.2 Format of Data Written to TCNT and TCSR
H'FFF8C *
H'FFF8C *
15
15
H'5A
H'A5
Rev. 4.00 Jan 26, 2006 page 469 of 938
8 7
8 7
Section 12 Watchdog Timer
Write data
Write data
REJ09B0276-0400
0
0
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