HD6417727BP100BV Renesas Electronics America, HD6417727BP100BV Datasheet - Page 559

• Manufacturer Part Number: HD6417727BP100BV
• Description: IC SUPERH MPU ROMLESS 240BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727BP100BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

The bit rate register (SCBRR) is an eight-bit register that, together with the baud rate generator
clock source selected by the CKS1 and CKS0 bits in the serial mode register (SCSMR),
determines the serial transmit/receive bit rate.
The CPU can always read and write the SCBRR.
The SCBRR is initialized to H'FF by a reset or in module standby or standby mode. Each channel
has independent baud rate generator control, so different values can be set in two channels.
The SCBRR setting is calculated as follows:
Table 17.3 SCSMR Settings
n
0
1
2
3
Note: Find the bit rate error for the asynchronous mode by the following formula:
Table 17.4 lists examples of SCBRR settings in the asynchronous mode; table 17.5 lists examples
of SCBRR settings in the clock synchronous mode.
Error (%) =
B:
N:
Pφ: Operating frequency for peripheral modules (MHz)
n:
Clock synchronous mode: N =
Bit rate (bit/s)
SCBRR setting for baud rate generator (0 ≤ N ≤ 255)
Baud rate generator clock source (n = 0, 1, 2, 3) (for the clock sources and values of
n, see table 17.3.)
Asynchronous mode: N =
(N + 1) × B × 64 × 2
Clock Source
Pφ
Pφ/4
Pφ/16
Pφ/64
Pφ × 10
6
64 × 2
8 × 2
2n–1
2n–1
Pφ
Pφ
2n–1
Section 17 Serial Communication Interface (SCI)
CKS1
0
0
1
1
– 1
× B
× B
Rev.6.00 Mar. 27, 2009 Page 501 of 1036
× 10
× 10
× 100
6
6
– 1
– 1
SCSMR Settings
CKS0
0
1
0
1
REJ09B0254-0600