HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 303

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Bits 2 to 0 Clock Select (CKS2 to CKS 0): When CKS3 = 0, bits 2 to 0 select the prescaler
division ratio and the serial clock cycle.
Bit 2: CKS2
0
1
Serial Control/Status Register 1 (SCSR1)
Note:
SCSR1 is an 8-bit register indicating operation status and error status.
Upon reset, SCSR1 is initialized to H'9C.
Bit 7 Reserved Bit: Bit 7 is reserved; it is always read as 1, and cannot be modified.
Bit
Initial value
Read/Write
* Only a write of 0 for flag clearing is possible.
Bit 1: CKS1
0
1
0
1
7
1
Bit 0: CKS0
0
1
0
1
0
1
0
1
SOL
R/W
0
6
R/(W) *
ORER
0
5
Prescaler Division
/1024 (initial value)
/256
/64
/32
/16
/8
/4
/2
4
1
Section 10 Serial Communication Interface
Rev. 6.00 Sep 12, 2006 page 281 of 526
3
1
204.8 µs
51.2 µs
12.8 µs
6.4 µs
3.2 µs
1.6 µs
0.8 µs
= 5 MHz
2
1
Serial Clock Cycle
REJ09B0326-0600
MTRF
R
1
0
409.6 µs
102.4 µs
25.6 µs
12.8 µs
6.4 µs
3.2 µs
1.6 µs
0.8 µs
= 2.5 MHz
R/W
STF
0
0