CPLD and FPGA
ATCA-8310 Installation and Use (6806800M72D
)
276
The state of the Divisor Latch Bit (DLAB), which is the MOST significant bit of the Serial Line
Control Register (SCR), affects the selection of certain of the UART registers. The DLAB bit must
be set high by the system software to access the Baud Rate Generator Divisor Latches (DLL and
DLM).
z
GPP UART Registers DLAB=0
- Receiver Buffer Register (RBR)
Table 8-49 GPP UART Register Overview
LPC IO Address
DLAB Bit value
Description
Base
0
Receiver Buffer (RBR). Read Only
Base
0
Transmitter Holding (THR). Write Only.
Base + 1
0
Interrupt Enable Register (IER)
Base + 2
X
Interrupt Identification Register (IIR). Read Only
Base + 2
X
FIFO Control Register (FCR). Write Only.
Base + 3
X
Line Control Register (LCR)
Base + 4
X
Modem Control Register (MCR)
Base + 5
X
Line Status Register (LSR). Read Only
Base + 6
X
Modem Status Register (MSR). Read Only
Base + 7
X
Scratch Pad Register (SCR).
Base
1
Divisor Latch LSB (DLL)
Base + 1
1
Divisor Latch MSB (DLM)
Summary of Contents for ATCA-8310
Page 12: ...ATCA 8310 Installation and Use 6806800M72D Contents 12 Contents Contents ...
Page 26: ...ATCA 8310 Installation and Use 6806800M72D 26 List of Figures ...
Page 34: ...ATCA 8310 Installation and Use 6806800M72D About this Manual 34 About this Manual ...
Page 54: ...Hardware Preparation and Installation ATCA 8310 Installation and Use 6806800M72D 54 ...
Page 70: ...Controls Indicators and Connectors ATCA 8310 Installation and Use 6806800M72D 70 ...
Page 162: ...BIOS ATCA 8310 Installation and Use 6806800M72D 162 ...
Page 200: ...U Boot ATCA 8310 Installation and Use 6806800M72D 200 ...
Page 244: ...Intelligent Peripheral Management Controller ATCA 8310 Installation and Use 6806800M72D 244 ...
Page 438: ...CPLD and FPGA ATCA 8310 Installation and Use 6806800M72D 438 ...
Page 442: ...Replacing the Battery ATCA 8310 Installation and Use 6806800M72D 442 ...
Page 444: ...Related Documentation ATCA 8310 Installation and Use 6806800M72D 444 ...
Page 454: ...ATCA 8310 Installation and Use 6806800M72D Sicherheitshinweise 454 ...
Page 456: ...Index ATCA 8310 Installation and Use 6806800M72D 456 ...
Page 457: ...Index ATCA 8310 Installation and Use 6806800M72D 457 ...
Page 458: ...Index ATCA 8310 Installation and Use 6806800M72D 458 ...
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