OM13005,598 NXP Semiconductors, OM13005,598 Datasheet - Page 9
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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3.1 Introduction
3.2 Pin description
3.3 Clocking and power control
UM10415
User manual
The system configuration block controls oscillators, start logic, and clock generation of the
EM773. Also included in this block are registers for setting the priority for AHB access and
a register for remapping flash, SRAM, and ROM memory areas.
Table 2
Table 2.
See
The EM773 includes three independent oscillators. These are the system oscillator, the
Internal RC oscillator (IRC), and the watchdog oscillator. Each oscillator can be used for
more than one purpose as required in a particular application.
Following reset, the EM773 will operate from the Internal RC oscillator until switched by
software. This allows systems to operate without any external crystal and the bootloader
code to operate at a known frequency.
The SYSAHBCLKCTRL register gates the system clock to the various peripherals and
memories. UART, the WDT, and SPI0 have individual clock dividers to derive peripheral
clocks from the main clock.
The main clock and the clock outputs from the IRC, the system oscillator, and the
watchdog oscillator can be observed directly on the CLKOUT pin.
For details on power control see
Pin name
CLKOUT
PIO0_0 to PIO0_10
UM10415
Chapter 3: EM773 System configuration
Rev. 1 — 10 September 2010
Figure 3
shows pins that are associated with system control block functions.
Pin summary
for an overview of the EM773 Clock Generation Unit (CGU).
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 10 September 2010
Pin direction
O
I
Section
3.7.
Pin description
Clockout pin
Start logic wake-up pins port 0
© NXP B.V. 2010. All rights reserved.
User manual
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