HD6417760BL200AV Renesas Electronics America, HD6417760BL200AV Datasheet - Page 801

• Manufacturer Part Number: HD6417760BL200AV
• Description: SH4 7760, 17 X17 256BGA, LCDC, U
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417760BL200AV

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio Codec, CAN, EBI/EMI, FIFO, I²C, MFI, MMC, SCI, Serial Sound, SIM, SPI, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 69
• Program Memory Type: ROMless
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Bit
27
Bit Name
UIRQ
Initial Value
0
R/W
R/W*
Description
Underflow Error Interrupt Status Flag
This status flag indicates that the data has been
supplied at a lower rate than the required rate.
This bit is set to 1 regardless of the setting of
UIEN bit. In order to clear it to 0, write 0 in it.
If UIRQ = 1 and UIEN = 1, then an interrupt will be
generated.
When TRMD = 0 (Receive Mode):
If UIRQ = 1, it indicates that SSIRDR was read
out before DMRQ and DIRQ bits would indicate
the existence of new unread data. In this
instance, the same received data may be stored
twice by the host, which can lead to destruction of
multi-channel data.
When TRMD = 1 (Transmit Mode):
If UIRQ = 1, it indicates that the transmitted data
was not written in SSITDR. By this, the same data
may be transmitted one time too often, which can
lead to destruction of multi-channel data.
Consequently, erroneous SSI data will be output,
which makes this error more serious than
underflow in the receive mode.
Note: When underflow error occurs, the data in
the data buffer will be transmitted until the
next data is written in.
Rev. 2.00 Feb. 12, 2010 Page 717 of 1330
REJ09B0554-0200