DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 590
DF61654N50FTV
Manufacturer Part Number
DF61654N50FTV
Description
IC H8SX/1654 MCU FLASH 120TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8SX/1600r
Datasheet
1.DF61653N50FTV.pdf
(1020 pages)
Specifications of DF61654N50FTV
Core Processor
H8SX
Core Size
32-Bit
Speed
50MHz
Connectivity
I²C, IrDA, SCI, SmartCard, USB
Peripherals
DMA, PWM, WDT
Number Of I /o
75
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
40K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
120-TQFP, 120-VQFP
For Use With
HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF61654N50FTV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 13 Watchdog Timer (WDT)
(2)
These registers can be read from in the same way as other registers. For reading, TCSR is assigned
to address H'FFA4, TCNT to address H'FFA5, and RSTCSR to address H'FFA7.
13.6.2
If a TCNT clock pulse is generated during the T2 cycle of a TCNT write cycle, the write takes
priority and the timer counter is not incremented. Figure 13.5 shows this operation.
13.6.3
If bits CKS2 to CKS0 in TCSR are written to while the WDT is operating, errors could occur in
the incrementation. The watchdog timer must be stopped (by clearing the TME bit to 0) before the
values of bits CKS2 to CKS0 are changed.
13.6.4
If the timer mode is switched from watchdog timer mode to interval timer mode while the WDT is
operating, errors could occur in the incrementation. The watchdog timer must be stopped (by
clearing the TME bit to 0) before switching the timer mode.
Rev.1.00 Sep. 08, 2005 Page 540 of 966
REJ09B0219-0100
Reading from TCNT, TCSR, and RSTCSR
P
Address
Internal write signal
TCNT input clock
TCNT
Conflict between Timer Counter (TCNT) Write and Increment
Changing Values of Bits CKS2 to CKS0
Switching between Watchdog Timer Mode and Interval Timer Mode
Figure 13.5 Conflict between TCNT Write and Increment
TCNT write cycle
T
1
N
T
2
Counter write data
M
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