SDA9380 Micronas Intermetall GmbH, SDA9380 Datasheet - Page 28

• Manufacturer Part Number: SDA9380
• Description: Enhanced Deflection Controller And RGB Video Processor (EDDC)
• Manufacturer: Micronas Intermetall GmbH

SDA 9380 - B21
The Vertical sync control byte includes the following bits:
The PWM control byte includes the following bits:
Micronas
PWMC5
- SSC:
- NI:
- PWMS1..
- PWMC5..
1)
The PWM output may be used as switching output when PWMS0 = 0. If PWMC = 100000
and PWMS1 = 0 the output is Low. If PWMC = 011111 the output is continously High.
V
X
PWMS0: PWM select
PWMC0: PWM control
OH
PWMC5...PWMC0
: PWM output High level, V
100000
110000
000000
010000
011111
PWMC4
x0: same duty cycle in each line selected (adjustable by PWMC)
01: positive V-parabola after external integration available (amplitude
11: negative V-parabola after external integration available (amplitude
These bits control either the duty cycle or the parabola amplitude
depending on PWMS0 according to the following table (if PWMS0 = 0
also PWMS1 defines the the duty cycle):
X
Sandcastle without VBL
0: output SCP with VBL component
1: output SCP without VBL component
Non interlace
0: interlace depends on source
1: no interlace
adjustable by PWMC)
adjustable by PWMC)
PWMC3
SSC
(32+PWMS1)/108
(64+PWMS1)/108
(96+PWMS1)/108
OL
(PWMS0 = 0)
: PWM output Low level
PWMS1/108
Duty cycle
PWMC2
1
X
5-20
PWMC1
NI
(ext. integration, PWMS0 = 1)
Amplitude of V-parabola
PWMC0
0.46 * (V
0.58 * (V
0.69 * (V
0.81 * (V
0.91 * (V
X
OH
OH
OH
OH
OH
Preliminary Data Sheet
PWMS1
-V
-V
-V
-V
-V
OL
OL
OL
OL
OL
X
System description
)
)
)
)
)
1)
1)
1)
1)
1)
PWMS0
X
2001-05-03