Maps and Registers
ATCA-7360 Installation and Use (6806800J07S
)
174
Bits one through four show error conditions that produce a receiver line status interrupt when
any of the corresponding conditions are detected and the interrupt is enabled. These bits are
not cleared by reading the erroneous byte from the FIFO or receive buffer. They are cleared only
by reading LSR. In FIFO mode, the line status interrupt occurs only when the erroneous byte is
at the top of the FIFO. If the erroneous byte being received is not at the top of the FIFO, an
interrupt is generated only after the previous bytes are read and the erroneous byte is moved
to the top of the FIFO.
Table 6-35 Line Control Register (LCR)
LPC IO Address: Base + 5
Bit
Description
Default
Access
0
Receiver data ready (DR) indicator
DR is set whenever a complete incoming character has been received and
transferred into the RBR or the FIFO. DR is cleared by reading all of the data
in the RBR or the FIFO:
1: New data received
0: No new data
0
LPC: r
1
Overrun Error (OE) indicator
When OE is set, it indicates that before the character in the RBR was read,
it was overwritten by the next character transferred into the register. OE is
cleared every time the CPU reads the contents of the LSR. If the FIFO mode
data continues to fill the FIFO beyond the trigger level, an overrun error
occurs only after the FIFO is full and the next character has been completely
received in the shift register. An overrun error is indicated to the CPU as
soon as it happens. The character in the shift register is overwritten but it is
not transferred to the FIFO:
1: Overrun error occurred
0: No overrun error
0
LPC: r
Summary of Contents for ATCA-7360
Page 1: ...ATCA 7360 Installation and Use P N 6806800J07S May 2016...
Page 26: ...ATCA 7360 Installation and Use 6806800J07S About this Manual 26 About this Manual...
Page 36: ...ATCA 7360 Installation and Use 6806800J07S Sicherheitshinweise 36...
Page 43: ...Introduction ATCA 7360 Installation and Use 6806800J07S 43...
Page 44: ...Introduction ATCA 7360 Installation and Use 6806800J07S 44...
Page 66: ...Installation ATCA 7360 Installation and Use 6806800J07S 66...
Page 258: ...Supported IPMI Commands ATCA 7360 Installation and Use 6806800J07S 258...
Page 284: ...Replacing the Battery ATCA 7360 Installation and Use 6806800J07S 284...
Page 287: ......
