HD64F3664FY Renesas Electronics America, HD64F3664FY Datasheet - Page 235

• Manufacturer Part Number: HD64F3664FY
• Description: IC H8 MCU FLASH 32K 48QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F3664FY

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SCI
• Peripherals: PWM, WDT
• Number Of I /o: 29
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 48-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

14.3.8
BRR is an 8-bit register that adjusts the bit rate. The initial value of BRR is H'FF. Table 14.2
shows the relationship between the N setting in BRR and the n setting in bits CKS1 and CKS0 of
SMR in asynchronous mode. Table 14.3 shows the maximum bit rate for each frequency in
asynchronous mode. The values shown in both tables 14.2 and 14.3 are values in active (high-
speed) mode. Table 14.4 shows the relationship between the N setting in BRR and the n setting in
bits CKS1 and CKS0 in SMR in clocked synchronous mode. The values shown in table 14.4 are
values in active (high-speed) mode. The N setting in BRR and error for other operating
frequencies and bit rates can be obtained by the following formulas:
[Asynchronous Mode]
[Clocked Synchronous Mode]
[Legend]
B: Bit rate (bit/s)
N: BRR setting for baud rate generator (0 ≤ N ≤ 255)
φ: Operating frequency (MHz)
n: CKS1 and CKS0 setting for SMR (0 ≤ N ≤ 3)
N =
Error (%) =
N =
Bit Rate Register (BRR)
64
8
2
2
2n–1
2n–1
(N + 1)
B
B
10
B
10
10
6
6
64
– 1
– 1
6
2
2n–1
– 1
Section 14 Serial Communication Interface 3 (SCI3)
100
Rev. 6.00 Mar. 24, 2006 Page 205 of 412
REJ09B0142-0600