HD64F3048F16 Renesas Electronics America, HD64F3048F16 Datasheet - Page 476

IC H8 MCU FLASH 128K 100QFP

HD64F3048F16

Manufacturer Part Number
HD64F3048F16
Description
IC H8 MCU FLASH 128K 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheets

Specifications of HD64F3048F16

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)
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
16 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
5
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-

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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:
Rev. 3.00 Sep 27, 2006 page 448 of 872
REJ09B0325-0300
* Lower 16 bits of the address.
Writing 0 in WRST bit
Writing to RSTOE bit
Note: * Lower 16 bits of the address.
Address
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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