HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 318

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 16 Serial Communication Interface 3 (SCI3)
16.3.8
BRR is an 8-bit register that adjusts the bit rate. The initial value of BRR is H'FF. Table 16.3
shows the relationship between the N setting in BRR and the n setting in bits CKS1 and CKS0 of
SMR in asynchronous mode. Table 16.4 shows the maximum bit rate for each frequency in
asynchronous mode. The values shown in both tables 16.3 and 16.4 are values in active (high-
speed) mode. Table 16.5 shows the relationship between the N setting in BRR and the n setting in
bits CKS1 and CKS0 of SMR in clock synchronous mode. The values shown in table 16.5 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]
[Clock Synchronous Mode]
[Legend]
Rev. 1.00 Sep. 16, 2005 Page 288 of 490
REJ09B0216-0100
B: Bit rate (bit/s)
N: BRR setting for baud rate generator (0 ≤ N ≤ 255)
φ: Operating frequency (MHz)
n: CSK1 and CSK0 settings in SMR (0 ≤ n ≤ 3)
N =
Error (%) =
N =
Bit Rate Register (BRR)
64 × 2
8 × 2
2n–1
2n–1
φ
φ



(N + 1) × B × 64 × 2
× B
× B
× 10
× 10
φ × 10
6
6
– 1
– 1
6
2n–1
– 1 × 100


