DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 919

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Bit
27
Bit Name
UIRQ
Initial
Value
0
R/W
R/W*
Description
Underflow Error Interrupt Status Flag
This status flag indicates that data was supplied at a
lower rate than was required.
In either case, this bit is set to 1 regardless of the value
of the UIEN bit and can be cleared by writing 0 to this
bit.
If UIRQ = 1 and UIEN = 1, an interrupt occurs.
•
•
Note: When underflow error occurs, the current data in
TRMD = 0 (Receive mode)
If UIRQ = 1, SSIRDR was read before there was
new unread data indicated by the DMRQ or DIRQ
bit. This can lead to the same received sample
being stored twice by the host leading to potential
corruption of multi-channel data.
TRMD = 1 (Transmit mode)
If UIRQ = 1, SSITDR did not have data written to it
before it was required for transmission. This will
lead to the same sample being transmitted once
more and a potential corruption of multi-channel
data. This is more serious error than a receive
mode underflow as the output SSI data results in
error.
the data buffer of this module is transmitted until
the next data is filled.
Rev. 3.00 Sep. 28, 2009 Page 887 of 1650
Section 18 Serial Sound Interface (SSI)
REJ09B0313-0300