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RV-3049 датащи(PDF) 10 Page - MICORO CRYSTAL SWITZERLAND

номер детали RV-3049
подробное описание детали  DTCXO Temperature Compensated Real Time Clock
PDF  65 Pages
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производитель  MICROCRYSTAL [MICORO CRYSTAL SWITZERLAND]
домашняя страница  http://www.microcrystal.com
Logo MICROCRYSTAL - MICORO CRYSTAL SWITZERLAND

RV-3049 датащи(HTML) 10 Page - MICORO CRYSTAL SWITZERLAND

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Micro Crystal
DTCXO Temperature Compensated Real Time Clock / Calendar Module
RV-3049
10/65
3. REGISTER ORGANIZATION
The registers are grouped into memory pages. The pages are addressed by the 5 most-significant-bits (MSB’s bits
7 – 3), the 3 least-significant-bites (LSB’s 2 – 0) select the registers within the addressed page.
30 RAM registers organized in 6 memory pages and 6 EEPROM registers organized in 2 memory pages are
available. During interface access, the page address (MSB’s 7 - 3) is fixed while the register address (LSB’s 2 - 0)
are automatically incremented. The content of all counters and registers are frozen to prevent faulty reading of the
clock/calendar registers during carry condition.
The time registers in the Clock and Alarm pages are encoded in the Binary Coded Decimal format (BCD) to simplify
application use. Other registers are either bit-wise or standard binary format.
3.1. REGISTER OVERVIEW
Address
Function
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
Address
Hex
Bit 7 - 3
Bit 2 - 0
Control page
00000
000
00h
Control_1
Clk/Int
TD1
TD0
SROn
EERE
TAR
TE
WE
001
01h
Control_INT
X
X
X
SRIE
V2IE
V1IE
TIE
AIE
010
02h
Control_INT Flag
X
X
X
SRF
V2IF
V1IF
TF
AF
011
03h
Control_Status
EEbusy
X
PON
SR
V2F
V1F
X
X
100
04h
Control_Reset
X
X
X
SysR
X
X
X
X
Clock page
00001
000
08h
Seconds
X
40
20
10
8
4
2
1
001
09h
Minutes
X
40
20
10
8
4
2
1
010
0Ah
Hours
X
12-24
20-PM
10
8
4
2
1
011
0Bh
Days
X
X
20
10
8
4
2
1
100
0Ch
Weekdays
X
X
X
X
X
4
2
1
101
0Dh
Months
X
X
X
10
8
4
2
1
110
0Eh
Years
X
40
20
10
8
4
2
1
Alarm page
00010
000
10h
Second Alarm
AE_S
40
20
10
8
4
2
1
001
11h
Minute Alarm
AE_M
40
20
10
8
4
2
1
010
12h
Hour Alarm
AE_H
X
20-PM
10
8
4
2
1
011
13h
Days Alarm
AE_D
X
20
10
8
4
2
1
100
14h
Weekday Alarm
AE_W
X
X
X
X
4
2
1
101
15h
Months Alarm
AE_M
X
X
10
8
4
2
1
110
16h
Year Alarm
AE_Y
40
20
10
8
4
2
1
Timer page
00011
000
18h
Timer Low
128
64
32
16
8
4
2
1
001
19h
Timer High
128
64
32
16
8
4
2
1
Temperature page
00100
000
20h
Temperature
128
64
32
16
8
4
2
1
EEPROM User
00101
000
28h
EEPROM User
2 bytes of EEPROM for user data
001
29h
EEPROM User
EEPROM Control page
00110
000
30h
EEPROM Contr.
R80k
R20k
R5k
R1k
FD1
FD0
ThE
ThP
001
31h
Xtal Offset
sign
64
32
16
8
4
2
1
010
32h
Xtal Coef
128
64
32
16
8
4
2
1
011
33h
Xtal T0
X
X
32
16
8
4
2
1
RAM page
00111
000
38h
User RAM
8 bytes of RAM for user data
:
:
111
3Fh
Bit positions labelled as “
X” are not implemented and will return a “0” when read.



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