HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 723

• Manufacturer Part Number: HD6417751RF240V
• Description: MPU 1.5/3.3V 0K PB-FREE 256-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417751RF240V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 240MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 39
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-QFP Exposed Pad, 256-eQFP, 256-HQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

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
Initial value:
R/W:
N: SCBRR1 setting for baud rate generator (0 ≤ N ≤ 255)
Pck: Peripheral module operating frequency (MHz)
n:
N =
N =
Bit Rate Register (SCBRR1)
Bit:
64 × 2
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
R/W
Pck
Pck
2n – 1
7
1
2n – 1
× B
Clock
Pck
Pck/4
Pck/16
Pck/64
× B
R/W
× 10
× 10
6
1
6
6
– 1
– 1
R/W
1
5
R/W
CKS1
0
0
1
1
4
1
Rev.4.00 Oct. 10, 2008 Page 623 of 1122
15. Serial Communication Interface (SCI)
R/W
3
1
SCSMR1 Setting
R/W
2
1
CKS0
0
1
0
1
REJ09B0370-0400
R/W
1
1
R/W
0
1