R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 911

• 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: -

23.3.27 GETHER Mode Register (GECMR)
GECMR is used to set the operating mode of the GETHER.
Bit
31 to 3
2
1
0
Initial value:
Initial value:
R/W:
R/W:
Bit:
Bit:
Bit Name

SPEED[1]
BSE
SPEED[0]
31
15


R
R
0
0
30
14


R
R
0
0
29
13


R
R
0
0
Initial
Value
All 0
0
0
0
28
12


R
R
0
0
27
11


R/W
R
R/W
R/W
R/W
R
R
0
0
26
10


R
R
0
0
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Transfer Speed
Sets the transfer speed in combination with the
SPEED[0] bit. Refer to the SPEED[0] bit.
Burst Transfer Enable
0: Burst transfer is not performed
1: Burst transfer is performed when the transfer speed
Transfer Speed
The transfer speed is specified by a combination of the
SPEED[1] and SPEED[0] bits.
SPEED[1:0]
00: 10-Mbps transfer
01: 1-Gbps transfer
10: 100-Mbps transfer
11: Setting prohibited
25

R

R
0
9
0
is 1 Gpbs in half-duplex transfer (DM bit in ECMR =
0).
24

R

R
0
8
0
Section 23 Gigabit Ethernet Controller (GETHER)
23


R
R
0
7
0
Rev. 2.00 May 22, 2009 Page 841 of 1982
22


R
R
0
6
0
21


R
R
0
5
0
20

R

R
0
4
0
19


R
R
0
3
0
SPEED
REJ09B0256-0200
R/W
18
[1]

R
0
2
0
BSE
17

R
0
1
0
SPEED
R/W
16
[0]

R
0
0
0