DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 652

• Manufacturer Part Number: DF2328BVF25V
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2328BVF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: HD64F2328BVF25V

Section 14 Serial Communication Interface (SCI)
The BRR setting is found from the following formulas.
Asynchronous mode:
Synchronous mode:
Where B: Bit rate (bits/s)
The bit rate error in asynchronous mode is found from the following formula:
Rev.6.00 Sep. 27, 2007 Page 620 of 1268
REJ09B0220-0600
N =
N =
Error (%) = {
N: BRR setting for baud rate generator (0 ≤ N ≤ 255)
φ: Operating frequency (MHz)
n: Baud rate generator input clock (n = 0 to 3)
n
0
1
2
3
(See the table below for the relation between n and the clock.)
64 × 2
8 × 2
Clock
φ
φ/4
φ/16
φ/64
2n–1
φ
2n–1
φ
(N + 1) × B × 64 × 2
× B
× B
× 10
× 10
CKS1
0
0
1
1
φ × 10
6
6
– 1
– 1
SMR Setting
6
CKS0
0
1
0
1
2n–1
– 1} × 100