OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 83
![BOARD EVAL EM773 METER US PLUG](/photos/38/74/387430/om13005_sml.jpg)
OM13005,598
Manufacturer Part Number
OM13005,598
Description
BOARD EVAL EM773 METER US PLUG
Manufacturer
NXP Semiconductors
Type
Other Power Managementr
Specifications of OM13005,598
Design Resources
Plug Meter Schematics, Gerber Files USB Dongle Schematics, Gerber Files
Main Purpose
Power Management, Energy/Power Meter
Embedded
Yes, MCU, 32-Bit
Utilized Ic / Part
EM773FHN33,551
Interface Type
USB
Maximum Operating Temperature
+ 150 C
Operating Supply Voltage
1.8 V to 3.6 V
Product
Power Management Development Tools
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Primary Attributes
-
Secondary Attributes
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
EM773, OL2381
Other names
568-6680
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NXP Semiconductors
UM10415
User manual
Fig 10. Auto-CTS Functional Timing
UART1 TX
CTS1 pin
9.6.9 UART Line Status Register (U0LSR - 0x4000 8014, Read Only)
start
bits0..7
While starting transmission of the initial character, the CTS signal is asserted.
Transmission will stall as soon as the pending transmission has completed. The UART will
continue transmitting a 1 bit as long as CTS is de-asserted (high). As soon as CTS gets
de-asserted, transmission resumes and a start bit is sent followed by the data bits of the
next character.
The U0LSR is a Read Only register that provides status information on the UART TX and
RX blocks.
Table 101. UART Line Status Register (U0LSR - address 0x4000 8014, Read Only) bit
Bit Symbol
0
1
2
Receiver
Data Ready
(RDR)
Overrun
Error
Parity Error
(OE)
(PE)
stop
description
All information provided in this document is subject to legal disclaimers.
Value Description
0
1
0
1
0
1
Rev. 1 — 10 September 2010
Chapter 9: EM773 Universal Asynchronous Transmitter (UART)
Receiver Data Ready:U0LSR[0] is set when the U0RBR holds
an unread character and is cleared when the UART RBR FIFO
is empty.
U0RBR is empty.
U0RBR contains valid data.
The overrun error condition is set as soon as it occurs. A
U0LSR read clears U0LSR[1]. U0LSR[1] is set when UART
RSR has a new character assembled and the UART RBR FIFO
is full. In this case, the UART RBR FIFO will not be overwritten
and the character in the UART RSR will be lost.
Overrun error status is inactive.
Overrun error status is active.
When the parity bit of a received character is in the wrong state,
a parity error occurs. A U0LSR read clears U0LSR[2]. Time of
parity error detection is dependent on U0FCR[0].
Note: A parity error is associated with the character at the top of
the UART RBR FIFO.
Parity error status is inactive.
Parity error status is active.
start
bits0..7
stop
start
UM10415
© NXP B.V. 2010. All rights reserved.
bits0..7
83 of 310
stop
Reset
Value
0
0
0
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