R8A77800ANBGAV Renesas Electronics America, R8A77800ANBGAV Datasheet - Page 857

• Manufacturer Part Number: R8A77800ANBGAV
• Description: IC SUPERH MPU ROMLESS 449-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77800ANBGAV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 400MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 75
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 449-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Bit
12 to 8
7 to 3
2 to 0
Bit Name
BRPS[4:0]
—
BRDV[2:0]
Initial
Value
00000
All 0
000
R/W
R/W
R
R/W
Description
Prescalar Setting
Set the master clock division ratio according to the
count value of the prescalar of the baud rate generator.
The range of settings is from 00000 (× 1/1) to 11111
(× 1/32).
Reserved
These bits are always read as 0. The write value should
always be 0.
Baud rate generator's Division Ratio Setting
Set the frequency division ratio for the output stage of
the baud rate generator.
000: Prescalar output × 1/2
001: Prescalar output × 1/4
010: Prescalar output × 1/8
011: Prescalar output × 1/16
100: Prescalar output × 1/32
101: Setting prohibited
110: Setting prohibited
111: Prescalar output × 1/1
•
Setting 111 is valid only when the bits BRPS[4:0]
are set to 00001.
The frequency division ratio of the baud rate
generator is finally determined by the value of
BRPS by BRDV (maximum 1/1024).
Rev.1.00 Dec. 13, 2005 Page 805 of 1286
Section 22 Serial I/O with FIFO (SIOF)
REJ09B0158-0100