OM13006,598 NXP Semiconductors, OM13006,598 Datasheet - Page 182

• Manufacturer Part Number: OM13006,598
• Description: BOARD EVAL EM773 METER EU PLUG
• Manufacturer: NXP Semiconductors
• Type: Other Power Managementr

Specifications of OM13006,598

• 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: 568-6681

NXP Semiconductors
14.8 Block diagram
UM10415
User manual
When reading the value of the 24-bit timer, the lock and synchronization procedure takes
up to 6 WDCLK cycles plus 6 PCLK cycles, so the value of WDTV is older than the actual
value of the timer when it's being read by the CPU.
Table 173. Watchdog Timer Value register (WDTV - address 0x4000 000C) bit description
The block diagram of the Watchdog is shown below in the
logic (PCLK/WDCLK) is not shown in the block diagram.
Bit
23:0
31:24
Fig 46. Watchdog block diagram
Symbol
Count
-
wdt_clk
All information provided in this document is subject to legal disclaimers.
Description
Counter timer value.
reserved
Rev. 1 — 10 September 2010
feed sequence
WDFEED
feed error
feed ok
Chapter 14: EM773 WatchDog Timer (WDT)
÷ 4
WDINT WDTOF WDRESET
24-BIT DOWN COUNTER
Figure
underflow
WMOD register
WDTC
46. The synchronization
SHADOW BIT
UM10415
© NXP B.V. 2010. All rights reserved.
Reset Value
0x0000 00FF
-
WDEN
enable
count
182 of 310
reset
interrupt