HD64F7144F50V Renesas Electronics America, HD64F7144F50V Datasheet - Page 429

• Manufacturer Part Number: HD64F7144F50V
• Description: IC SUPERH MCU FLASH 256K 112QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7144r

Specifications of HD64F7144F50V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 112-QFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)EDK7145 - DEV EVALUATION KIT SH7145
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Notes: 1. Only a 0 can be written after reading 1.
Bit
4, 3
2
1
0
Bit Name
—
CKS2
CKS1
CKS0
2. The overflow interval listed is the time from when the TCNT begins counting at H'00
until an overflow occurs.
Initial Value
All 1
0
0
0
R/W
R
R/W
R/W
R/W
Description
Reserved
These bits are always read as 1. The write value
should always be 1.
Clock Select 2 to 0
Select one of eight internal clock sources for input to
TCNT. The clock signals are obtained by dividing
the frequency of the system clock (
frequency for φ = 40 MHz is enclosed in
parentheses*
000: Clock φ/2 (overflow interval: 12.8 μs)
001: Clock φ/64 (overflow interval: 409.6 μs)
010: Clock φ/128 (overflow interval: 0.8 ms)
011: Clock φ/256 (overflow interval: 1.6 ms)
100: Clock φ/512 (overflow interval: 3.3 ms)
101: Clock φ/1024 (overflow interval: 6.6 ms)
110: Clock φ/4096 (overflow interval: 26.2 ms)
111: Clock φ/8192 (overflow interval: 52.4 ms)
Rev.4.00 Mar. 27, 2008 Page 383 of 882
2
.
12. Watchdog Timer
REJ09B0108-0400
φ
). The overflow