HD64F3048VTF8 Renesas Electronics America, HD64F3048VTF8 Datasheet - Page 470
HD64F3048VTF8
Manufacturer Part Number
HD64F3048VTF8
Description
IC H8 MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.HD64F3048F16.pdf
(907 pages)
Specifications of HD64F3048VTF8
Core Processor
H8/300H
Core Size
16-Bit
Speed
8MHz
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)
2.7 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
-
Other names
HD64F3048VX8
- Current page: 470 of 907
- Download datasheet (6Mb)
Section 12 Watchdog Timer
Writing to RSTCSR: RSTCSR must be written by a word transfer instruction. It cannot be
written by byte transfer instructions. Figure 12.3 shows the format of data written to RSTCSR. To
write 0 in the WRST bit, the write data must have H'A5 in the upper byte and H'00 in the lower
byte. The H'00 in the lower byte clears the WRST bit in RSTCSR to 0. To write to the RSTOE bit,
the upper byte must contain H'5A and the lower byte must contain the write data. Writing this
word transfers a write data value into the RSTOE bit.
Reading TCNT, TCSR, and RSTCSR: These registers are read like other registers. Byte access
instructions can be used. The read addresses are H'FFA8 for TCSR, H'FFA9 for TCNT, and
H'FFAB for RSTCSR, as listed in table 12.3.
Table 12.3 Read Addresses of TCNT, TCSR, and RSTCSR
Address*
H'FFA8
H'FFA9
H'FFAB
Note: * Lower 16 bits of the address.
Rev. 7.00 Sep 21, 2005 page 444 of 878
REJ09B0259-0700
Writing 0 in WRST bit
Writing to RSTOE bit
Note:
Address
Address
*
Lower 16 bits of the address.
Figure 12.3 Format of Data Written to RSTCSR
Register
TCSR
TCNT
RSTCSR
H'FFAA*
H'FFAA*
15
15
H'A5
H'5A
8 7
8 7
Write data
H'00
0
0
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