sm5330a Seiko NPC Corp., sm5330a Datasheet - Page 15

• Manufacturer Part Number: sm5330a
• Description: 3-channel Video Filter With Built-in 4-system Switch
• Manufacturer: Seiko NPC Corp.

SUB ADDRESS: 03h − DAC_0 output control
SUB ADDRESS: 04h − DAC_1 output control
Sets the DAC_0 and DAC_1 pins output voltage, respectively.
Status Register
The SM5330A has a 3-byte status register.
STATUS REGISTER MAP
The function of each byte in the status register is described in the following tables.
SUB ADDRESS: 00h − I/O input status
Returns the input state of the logic I/O pins. The I/O_0 and I/O_1 pins are n-channel MOS open-drain outputs.
When the I/O pins are used as inputs, set the outputs “1” (high impedance) in the control register.
default
default
Name
Name
Name
Value
Value
Addr.
Value
00h
01h
02h
bit7
bit7
bit7
bit7
−
−
−
0
0
1
0
0
1
0
0
0
0
bit6
bit6
bit6
bit6
L1
−
−
−
0
0
1
0
0
1
0
0
0
0
bit5
bit5
bit5
bit5
−
−
−
0
0
1
0
0
1
0
0
0
0
bit4
bit4
bit4
bit4
−
−
−
0
0
1
0
0
1
0
0
0
0
DAC0
DAC1
L2
:
:
bit3
bit3
bit3
bit3
−
−
−
0
0
1
0
0
1
0
0
0
0
bit2
bit2
bit2
bit2
−
−
−
0
0
1
0
0
1
0
0
0
0
SM5330A
SW1
bit1
bit1
bit1
bit1
IN1
IN1
L3
0
0
1
0
0
1
0
1
SW2
bit0
bit0
bit0
bit0
IN0
IN0
0
0
1
0
0
1
0
1
I/O input status
D-terminal input status
D-terminal connection status
I/O_1 input "L" (< 1.5V)
I/O_1 input "H" (> 3.0V)
I/O_0 input "L" (< 1.5V)
I/O_0 input "H" (> 3.0V)
(Hex)
(Hex)
00h
00h
FFh
00h
00h
FFh
:
:
DAC_0 output 0.35V (default)
:
DAC_0 output 4.45V
DAC_1 output 0.35V (default)
:
DAC_1 output 4.45V
SEIKO NPC CORPORATION —15
Description
Description
Description
Description