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AS3658 Datasheet(PDF) 117 Page - ams AG

Part # AS3658
Description  Power and Audio Management Unit for Portable Devices
PDF  158 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3658 Datasheet(HTML) 117 Page - ams AG

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www.austriamicrosystems.com
Revision 1v13
116 - 157
AS3658
Data Sheet Confidential - Deta il ed Descri ption - System Functi ons
10 Detailed Description - System Functions
The system functions consist of the I2C interface, the reset controller, the interrupt controller, startup sequences and
programming, the watchdog, internal references, the ON-key detect and the real time clock module.
10.1
I
2
C Serial Interface
Table 122. I2C SDA,SCL Characteristics
Symbol
Parameter
Min
Typ
Max
Unit
Note
10.1.1 Feature List
Fast-mode capability (max. SCL-frequency is 400 kHzkHz)
7+1-bit addressing mode
60h x 8-bit data registers (word address 0x00 - 0x60)
Write formats: Single-Byte-Write, Page-Write
Read formats: Current-Address-Read, Random-Read, Sequential-Read
SDA input delay and SCL spike filtering by integrated RC-components
10.1.2 Transfer Formats
Figure 51. I
2
C Byte-Write
AS3658 device address write (DW):80h = 10000000b
AS3658 device address read (DR): 81h = 10000001b
Figure 52. I
2
C Page-Write:
Byte-Write and Page-Write are used to write data to the slave.
VIL
SCL,SDA Low Level
input voltage
-0.3
0.4
V
VIH
SCL,SDA High Level
input voltage
1.3
VSUPP
LY
V
S
DW
A
WA
A
reg_data
A P
write register,
WA++
S
START condition after STOP
Sr
repeated START
DW
device address for write
DR
device address for read
WA
word address
Aacknowledge
N
no acknowledge
P
stop condition
white field
slave as receiver
grey field
slave as transmitter
WA++
increment word address internally
S
DW
A
WA
A
reg_data 1
A
A
reg_data 2
write register
WA++
P
A
reg_data n
write register
WA++
write register
WA++
…



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