XR16C2850CM48 EXAR [Exar Corporation], XR16C2850CM48 Datasheet - Page 30

• Manufacturer Part Number: XR16C2850CM48
• Description: 3.3V AND 5V DUART WITH 128-BYTE FIFO
• Manufacturer: EXAR [Exar Corporation]

EFR[7]: Auto CTS Flow Control Enable
Automatic CTS Flow Control.
• Logic 0 = Automatic CTS flow control is disabled
• Logic 1 = Enable Automatic CTS flow control. Data
These registers are used as the programmable soft-
ware flow control characters xoff1, xoff2, xon1, and
xon2. For more details, see Table 6 on page 15.
4.20 S
(default).
transmission stops when CTS# input de-asserts to
logic 1. Data transmission resumes when CTS#
returns to a logic 0.
XOFF2, XON1, XON2) - R
OFTWARE
F
LOW
C
ONTROL
3.3V AND 5V DUART WITH 128-BYTE FIFO
EAD
R
EGISTERS
/W
RITE
(XOFF1,
30
I/O SIGNALS
REGISTERS
T
ABLE
RXRDY#
TXRDY#
XOFF1
XOFF2
EMSR
XON1
XON2
OP2#
RTS#
DTR#
MCR
FLVL
DLM
RHR
MSR
THR
FCR
LCR
SPR
EFR
LSR
DLL
IER
ISR
INT
FC
TX
16: UART RESET CONDITIONS FOR
CHANNEL A AND B
Bits 7-0 = 0x00
Bits 7-0 = 0xXX
Bits 7-0 = 0xXX
Bits 7-0 = 0xXX
Bits 7-0 = 0xXX
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x01
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x60
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs
inverted
Bits 7-0 = 0xFF
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Bits 7-0 = 0x00
Logic 1
Logic 1
Logic 1
Logic 1
Logic 1
Logic 0
Three-State Condition
RESET STATE
RESET STATE
XR16C2850
REV. 2.0.0