HD6417750RF240DV Renesas Electronics America, HD6417750RF240DV Datasheet - Page 762

• Manufacturer Part Number: HD6417750RF240DV
• Description: MPU 3V 16K I-TEMP,PB-FREE 208-QF
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750RF240DV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 15 Serial Communication Interface (SCI)
15.2.9
SCBRR1 is an 8-bit register that sets the serial transfer bit rate in accordance with the baud rate
generator operating clock selected by bits CKS1 and CKS0 in SCSMR1.
SCBRR1 can be read or written to by the CPU at all times.
SCBRR1 is initialized to H'FF by a power-on reset or manual reset, in standby mode, and in the
module standby state.
The SCBRR1 setting is found from the following equations.
Asynchronous mode:
Synchronous mode:
Where B:
n
0
1
2
3
Rev.7.00 Oct. 10, 2008 Page 676 of 1074
REJ09B0366-0700
Initial value:
N: SCBRR1 setting for baud rate generator (0 ≤ N ≤ 255)
Pck: Peripheral module operating frequency (MHz)
n:
N =
N =
Bit Rate Register (SCBRR1)
64 × 2
R/W:
Bit rate (bits/s)
Baud rate generator input clock (n = 0 to 3)
(See the table below for the relation between n and the clock.)
8 × 2
Bit:
Clock
Pck
Pck/4
Pck/16
Pck/64
Pck
Pck
2n – 1
2n – 1
R/W
7
1
× B
× B
× 10
× 10
R/W
6
6
6
1
– 1
– 1
CKS1
0
0
1
1
R/W
5
1
SCSMR1 Setting
R/W
4
1
CKS0
0
1
0
1
R/W
3
1
R/W
2
1
R/W
1
1
R/W
0
1