HD6417709SF133B Renesas Electronics America, HD6417709SF133B Datasheet - Page 260
HD6417709SF133B
Manufacturer Part Number
HD6417709SF133B
Description
IC SUPERH MPU ROMLESS 208LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.D6417709SBP167BV.pdf
(809 pages)
Specifications of HD6417709SF133B
Core Processor
SH-3
Core Size
32-Bit
Speed
133MHz
Connectivity
EBI/EMI, FIFO, IrDA, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
96
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 2.05 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
208-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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9.6
9.6.1
Figure 9.2 shows a block diagram of the WDT.
9.6.2
The WDT has two registers that select the clock, switch the timer mode, and perform other
functions. Table 9.5 shows the WDT registers.
Table 9.5
Name
Watchdog timer counter
Watchdog timer
control/status register
Note: * Write with word access. Write with H'5A and H'A5, respectively, in the upper byte. Byte or
Rev. 5.00, 09/03, page 214 of 760
cancellation
Legend
WTCSR:
longword writes are not possible. Read with byte access.
WTCNT:
Overview of WDT
Block Diagram of WDT
Interrupt
Register Configuration
Standby
Internal
request
request
reset
Register Configuration
Watchdog timer control/status register
Watchdog timer counter
Interrupt
Standby
control
control
control
Reset
Abbreviation
WTCNT
WTCSR
Figure 9.2 Block Diagram of WDT
WTCSR
Clock selection
R/W
R/W * H'00
R/W * H'00
Overflow
Bus interface
WDT
Initial Value
WTCNT
Clock selector
Divider
Address
H'FFFFFF84
H'FFFFFF86
Clock
Standby
mode
Peripheral
clock
Access Size
R: 8;
W: 16 *
R: 8;
W: 16 *
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