R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 997

• Manufacturer Part Number: R5S77631Y266BGV
• Description: IC SUPERH MPU ROMLESS 499BGA
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7780r

Specifications of R5S77631Y266BGV

• Core Processor: SH-4A
• Core Size: 32-Bit
• Speed: 266MHz
• Connectivity: Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 107
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.15 V ~ 1.35 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 499-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Note: When starting transmission before one frame of data write has completed, take care no
23.3.79 FIFO Depth Register (FDR)
FDR is a 32-bit readable/writable register that specifies the sizes of the transmit and receive
FIFOs.
Bit
31 to 11
10 to 8
7 to 5
Initial value:
Initial value:
R/W:
R/W:
underflow occurs.
Bit:
Bit:
Bit Name

TFD[2:0]

31
15


R
R
0
0
30
14


R
R
0
0
29
13


R
R
0
0
Initial
Value
All 0
All 1
All 0
28
12


R
R
0
0
27
11


R
R
0
0
R/W
R
R/W
R
R/W
26
10

R
0
1
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Transmit FIFO Size
Specifies 256 bytes to 2 Kbytes in 256-byte units as the
size of the transmit FIFO whose maximum size is 2
Kbytes. The setting must not be changed after
transmission/reception has started.
H'00 : 256 bytes
H'01 : 512 bytes
H'07 : 2048 bytes
Reserved
These bits are always read as 0. The write value should
always be 0.
TFD[2:0]
R/W
25

R
0
9
1
:
R/W
24

R
0
8
1
:
Section 23 Gigabit Ethernet Controller (GETHER)
23


R
R
0
7
0
Rev. 2.00 May 22, 2009 Page 927 of 1982
22


R
R
0
6
0
21


R
R
0
5
0
R/W
20

R
0
4
1
R/W
19

R
0
3
1
RFD[4:0]
REJ09B0256-0200
R/W
18

R
0
2
1
17

R
0
1
1
R/W
16

R
0
0
1