cxa3516r Sony Electronics, cxa3516r Datasheet - Page 38

• Manufacturer Part Number: cxa3516r
• Description: 3-channel 8-bit 165msps A/d Converter Amplifier Pll
• Manufacturer: Sony Electronics

2) Read mode
Power-on Reset
XSENABLE
XSENABLE
When the power supply rises, the power-on reset circuit operates and all the control register data is set to "1".
AMP, ADC, PLL and SYNCSEP are all set to power save mode, and all the TTL output pins are set to high
impedance mode. Therefore, it is possible to share the same bus interface with other digital outputs having
high impedance modes.
SEROUT
SEROUT
Input the 7-bit sub address and 1-bit READ/WRITE setting to the SDA pin.
When READ/WRITE setting is "0", the 8-bit internally set data is output in series from the LSB by the
SEROUT (Pin 12). While data is being output from the SEROUT pin, don't care what data is input to the
SDA pin.
Use the read function to check whether the data is set correctly inside the IC.
The SEROUT pin is TTL output.
When not using the READOUT function, the TTL output circuit can be turned off by control register.
Register: SEROUT ENABLE
SDA
SDA
SCL
SCL
SEROUT output status
LSB
A0
T
ENS
A1
T
DS
A2
SUB ADDRESS
T
A3
DH
Function off
A4
0
A5
0
MSB
Function on
A6
0
READ/WRITE
READ/WRITE
– 38 –
0: READ Mode
1: WRITE Mode
1
0
LSB
D0
D1
D2
T
D
D3
DATA
D4
D5
T
ENH
D6
T
ENPW
MSB
D7
CXA3516R