Hardware UART

Table 17-20. HWUART Register Locations (Sheet 2 of 2)

Register

DLAB Bit

Name

Description

Addresses

Value

 

 

 

 

 

 

0x4160_0008

X

HWIIR

“Interrupt Identification Register (IIR)” (read only)

 

 

 

 

0x4160_0008

X

HWFCR

“FIFO Control Register (FCR)” (write only)

 

 

 

 

0x4160_000C

X

HWLCR

“Line Control Register (LCR)” (read/write)

 

 

 

 

0x4160_0010

X

HWMCR

“Modem Control Register (MCR)” (read/write)

 

 

 

 

0x4160_0014

X

HWLSR

“Line Status Register (LSR)” (read only)

 

 

 

 

0x4160_0018

X

HWMSR

“Modem Status Register (MSR)” (read only)

 

 

 

 

0x4160_001C

X

HWSPR

“Scratchpad Register (SCR)” (read/write)

 

 

 

 

0x4160_0020

X

HWISR

“Infrared Selection Register (ISR)” (read/write)

 

 

 

 

0x4160_0024

X

HWFOR

“Receive FIFO Occupancy Register (FOR)” (read only)

 

 

 

 

0x4160_0028

X

HWABR

“Auto-Baud Control Register (ABR)” (read/write)

 

 

 

 

0x4160_002C

X

HWACR

“Auto-Baud Count Register (ACR)”

 

 

 

 

0x4160_0000

1

HWDLL

“Divisor Latch Registers (DLL and DLH)” low byte (read/write)

 

 

 

 

0x4160_0004

1

HWDLH

“Divisor Latch Registers (DLL and DLH)” high byte (read/write)

 

 

 

 

17-26

Intel® PXA255 Processor Developer’s Manual

Page 598
Image 598
Intel PXA255 manual Hwuart Register Locations Sheet 2, Hwiir