ade7169f16 Analog Devices, Inc., ade7169f16 Datasheet - Page 25

• Manufacturer Part Number: ade7169f16
• Description: Single-phase Energy Measurement Ic With 8052 Mcu, Rtc And Lcd Driver
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
Table 18. Scratch Pad 2 SFR (SCRATCH2, 0xFC)
Table 19. Scratch Pad 3 SFR (SCRATCH3, 0xFD)
Table 20. Scratch Pad 4 SFR (SCRATCH4, 0xFE)
Table 21. Power Control SFR (POWCON, 0xC5)
Note: Writing data to the POWCON SFR involves a double instruction sequence. Global interrupts must first be disabled to ensure that
the two instructions occur consecutively. The KYREG SFR is set to 0xA7 and immediately followed by a write to the POWCON SFR. For
example:
CLR EA
MOV KYREG,#0A7h
MOV POWCON, #10H
NOP
NOP
POWER SUPPLY ARCHITECTURE
ADE7169F16 has two power supply inputs, V
requires only a single 3.3V power supply at V
Bit
Location
7-0
Bit
Location
7-0
Bit
Location
7-0
Bit
Location
7-5
4
3
2-0
Bit
Mnemonic
RESERVED
COREOFF
RESERVED
CD[2:0]
Bit
Mnemonic
SCRATCH2
Bit
Mnemonic
SCRATCH3
Bit
Mnemonic
SCRATCH4
Default
Value
0
Default
Value
0
Default
Value
0
Default
Value
0
0
010
;Disable Interrupts while configuring to WDT
;Write KYREG to 0xA7 to get write access to the POWCON SFR
;Shutdown the core
Description
Value can be written/read in this register. This value will be maintained in all the power
saving modes of the ADE7169F16
Description
Value can be written/read in this register. This value will be maintained in all the power
saving modes of the ADE7169F16
Description
Value can be written/read in this register. This value will be maintained in all the power
saving modes of the ADE7169F16
DD
DD
Set this bit to shut down the core if in the PSM1 operating mode.
Controls the core clock frequency, F
CD[2:0]
0
0
0
0
1
1
1
1
for full
and V
Description
0
0
1
1
0
0
1
1
BAT
0
1
0
1
0
1
0
1
, and
Rev. PrD | Page 25 of 140
F
4.096
2.048
1.024
0.512
0.256
0.128
0.064
0.032
core
(MHz)
operation. A battery backup, or secondary power supply, with a
maximum of 3.6V can be connected to the V
Internally, the ADE7169F16 connects V
is used to derive the power for the ADE7169F16 circuitry. The
core
. F
core
=4.096MHz/2
CD
DD
or V
ADE7169F16
BAT
BAT
input.
to V
SW
, which