Mitsubishi DPLUS 74SB -BKA Service Manual page 152

Name I/O
N16 N201 N202 N24
SSB I 6
SDA I 7
SCK I 8
RIN I -
GIN I -
BIN I -
NC - -
PWM0 O -
PWM1 O -
PWM2 O -
PWM3 O -
PWM4 O -
VDD - 9
VFLB I 10
INT O 11
FBKG O 12
BOUT O 13
GOUT O 14
ROUT O 15
VSS - 16
Pin No.
6 6 6 Serial interface enable. It is used to enable the serial data
and is also used to select the operation of I²C or SPI bus. If
this pin is left floating, I²C bus is enabled, otherwise the SPI
bus is enabled.
7 7 7 Serial data input. The external data transfer through this pin
to internal display registers and control registers. It has an
internal pull-up resistor.
8 8 8 Serial clock input. The clock-input pin is used to
syn-chronize the data transfer. It has an internal pull-up
resistor.
- 9 9 Red video input. It is used for auto sizing measurement and
this signal is came from video pre-amp red output.
- 10 10 Green video input. It is used for auto sizing measurement
and this signal is came from video pre-amp green output.
- 11 11 Blue video input. It is used for auto sizing measurement
and this signal is came from video pre-amp blue output.
- 12 - No connection.
9 - 12 Open-Drain PWM D/A converter 0. The output pulse width
is programmable by the register of Row 15, column 23.
10 - 13 Open-Drain PWM D/A converter 1. The output pulse width
is programmable by the register of Row 15, column 24.
11 - 14 Open-Drain PWM D/A converter 2. The output pulse width
is programmable by the register of Row 15, column 25.
12 - 15 Open-Drain PWM D/A converter 3. The output pulse width
is programmable by the register of Row 15, column 26.
- - 16 Open-Drain PWM D/A converter 4. The output pulse width
is programmable by the register of Row 15, column 27.
13 13 17 Digital power supply. Positive 5 V DC supply for internal
digital circuitry and a 0.1uF decoupling capacitor should be
connected across to VDD and VSS.
14 14 18 Vertical input. This pin is used to input the vertical
synchronizing signal. It is leading triggered and has an
internal pull-up resistor.
15 15 19 Intensity color output. 16-color selection is achievable by
combining this intensity pin with R/G/B output pins.
16 16 20 Fast Blanking output. It is used to cut off external R, G, B
signals of VGA while this chip is displaying character or
windows.
17 17 21 Blue color output. It is a blue color video signal output.
18 18 22 Green color output. It is a green color video signal output.
19 19 23 Red color output. It is a red color video signal output.
20 20 24 Digital ground. This ground pin is used to internal digital
circuitry.
Descriptions
7-51