HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 540

• Manufacturer Part Number: HD64F2239TF20I
• Description: MCU 3V 384K I-TEMP 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of HD64F2239TF20I

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 13 Watchdog Timer (WDT)
(3) Reading from TCNT, TCSR, and RSTCSR
These registers can be read in the same way normal registers are read. TCSR is allocated at
address H'FF74, TCNT at address H'FF75, and RSTCSR at address H'FF77.
13.6.2
If a timer counter clock pulse is generated during the T
takes priority and the timer counter is not incremented. Figure 13.8 shows this operation.
Rev. 6.00 Mar. 18, 2010 Page 478 of 982
REJ09B0054-0600
Contention between Timer Counter (TCNT) Write and Increment
Address
Internal write signal
TCNT input clock
TCNT
φ
Figure 13.8 Contention between TCNT Write and Increment
When writing 0 to the WOVF bit
When writing to the RSTE and RSTS bits
Address:
Address:
Figure 13.7 Writing to RSTCSR
H'FF76
H'FF76
15
15
TCNT write cycle
T 1
H'A5
H'5A
N
T 2
2
8
8
state of a TCNT write cycle, the write
7
7
Write data
Counter write data
H'00
M
0
0