R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 1096

• Manufacturer Part Number: R8A77850ANBGV
• Description: IC SUPERH MPU ROMLESS 436-BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R8A77850ANBGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 600MHz
• Connectivity: Audio Codec, MMC, Serial Sound, SCI, SIO, SPI, SSI
• Peripherals: DMA, POR, WDT
• Number Of I /o: 108
• Program Memory Type: ROMless
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1 V ~ 1.2 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 436-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

21. Serial Communication Interface with FIFO (SCIF)
21.3.10 Transmit FIFO Data Count Register n (SCTFDR)
SCTFDR is a 16-bit register that indicates the number of transmit data bytes stored in SCFTDR.
SCTFDR can always be read from the CPU.
Rev.1.00 Jan. 10, 2008 Page 1064 of 1658
REJ09B0261-0100
Initial value:
Bit
15 to 7
6 to 0
R/W:
BIt:
Bit Name
—
T6 to T0
15
⎯
R
0
14
⎯
R
0
13
⎯
R
0
Initial
Value
All 0
All 0
12
⎯
R
0
11
⎯
R
0
R/W
R
R
10
⎯
R
0
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
These bits show the number of untransmitted data
bytes in SCFTDR. A value of H'00 indicates that there
is no transmit data, and a value of H'40 indicates that
SCFTDR is full of the maximum number (64 bytes) of
transmit data.
⎯
R
9
0
⎯
R
8
0
⎯
R
7
0
T6
R
6
0
T5
R
5
0
T4
R
4
0
T3
R
3
0
T2
R
2
0
T1
R
1
0
T0
R
0
0