S5N8943B Datasheet, PDF (17/22 Pages) Samsung semiconductor – G.Lite ADSL Analog Front End IC

S5N8943B
G.Lite ADSL Analog Front End IC
4.1.2 Serial Data Interface
4.1.2.1 Physical Interface
Serial interfaces use three pins:
- Clock
- Serial data (25-bit: 2bit cs + 5bit address + 1bit r/w + 16 bit data + 1bit dummy)
- Enable
S5N8944
(DMT)
AFE_SCLK
AFE_SEN
AFE_SDIN
S5N8943B01
(AFE)
4.1.2.2 Waveform
SEN
SCLK
SDIN
SDOUT
T_SU1
T_PWL
T_PWH
T_CYC
T_H2T_SU2
CS1 CS0 A4
A3
A2
A1
A0 R/W D15 D14
T_D3
D15 D14
T_H1 T_PW
D1
D0
Dummy
D1
D0
T_D4
Parameter
Symbol
Min
Typ
Max
Unit
SCLK Clock Period
T_CYC
905
nS
SCLK High Time
T_PWH
452
nS
SCLK Low Time
T_PWL
452
nS
SEN Low To SCLK High
T_SU1
30
nS
SCLK High To SEN High
T_H1
15
nS
SEN Inactive Pulse Time
T_PW
905
nS
SDIN Setup time
T_SU2
15
nS
SDIN Hold time
T_H2
15
nS
SCLK low to SDOUT delay
T_D3
30
nS
SEN inactive to SDOUT HiZ
T_D4
30
nS
CONFIDENTIAL
Preliminary Information (Rev.1.0)
17