R8A77850ANBGV Renesas Electronics America, R8A77850ANBGV Datasheet - Page 1214
R8A77850ANBGV
Manufacturer Part Number
R8A77850ANBGV
Description
IC SUPERH MPU ROMLESS 436-BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R8A77850AADBGV.pdf
(1694 pages)
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R8A77850ANBGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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24. Multimedia Card Interface (MMCIF)
Rev.1.00 Jan. 10, 2008 Page 1182 of 1658
REJ09B0261-0100
Bit
5
4
3
2
1
Bit Name
FIFO_EMPTY
CWRE
DTBUSY
DTBUSY_TU Undefined
—
Initial
Value
0
0
0
0
R/W
R
R
R
R
R
Description
FIFO Empty
This bit is set to 1 when the FIFO becomes empty while
data is being sent to the card, and cleared to 0 when
DATA_EN is set to 1 or the command sequence is
completed.
Indicates whether the FIFO holds data or not.
0: The FIFO includes data.
1: The FIFO is empty.
Command Register Write Enable
Indicates whether the CMDR command is being
transmitted or has been transmitted.
0: The CMDR command has been transmitted, or the
1: The CMDR command is waiting for transmission or is
Data Busy
Indicates command execution status. Indicates that the
card is in the busy state after the command sequence
of a command without data transfer which includes the
busy state in the response, or a command with write
data has been ended.
0: Idle state waiting for a command, or command
1: Card is in the data busy state after command
Data Busy Pin Status
Indicates the MMCDAT pin level. By reading this bit, the
MMCDAT level can be monitored.
0: A low level is input to the MMCDAT pin.
1: A high level is input to the MMCDAT pin.
Reserved
This bit is always read as 0. The write value should
always be 0.
CMDSTART bit in CMDSTRT has not been set yet,
so the new command can be written.
being transmitted. If a new command is written, a
malfunction will result.
sequence execution in progress
sequence termination.
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