- SS-HQ1 Application Notes -
Ver.1.0.0 January 7, 2005
190
Table 12.2-4 Detection disabling parameters
Parameter
Description
HDETOFF CAT7_Byte2_bit0 EXT-HD
input
detection 0[h]: Enable 1[h]: Disable
VDETOFF
CAT7_Byte2_bit1
EXT-VD input detection 0[h]: Enable 1[h]: Disable
SDETOFF
CAT7_Byte2_bit2
EXT-SYNC input detection 0[h]: Enable 1[h]: Disable
BDETOFF CAT7_Byte2_bit3 EXT-BURST
input detection 0[h]: Enable 1[h]: Disable
SGMODE
SGMODE is used to switch the external synchronization mode based on a value set by the user. The
relationships between SGMODE and the various external synchronization modes are shown in
Table 12.2-5 SGMODE and external synchronization modes
SGMODE
External synchronization mode
Remarks
0[h]
Internal mode (INT)
1[h]
Line lock mode (LL)
2[h]
VS lock mode (VSL)
3[h]
VBS lock mode (VBSLHP)
4[h]
VBS lock mode (VBSLHR)
5[h]
V reset H reset mode (VRHR)
A[h]
VS lock mode (VSL-S)
F[h]
VS lock mode (VSL-D)
Enabled when ATMODEON=0[h]
SGMODE controlled parameters
The values of some parameters are controlled automatically based on SGMODE through F/W control in order
to facilitate external synchronization mode switching.
The following table shows the relationships between the SGMODE-controlled parameters and values. The
parameters in
set the synchronization signal I/O pins which are F/W-controlled based on
SGMODE. The relationships between these parameters and SGMODE are shown in
Table 12.2-6 SGMODE control pins (parameters setting synchronization signal I/O pins)
Description
Pin name
(pin No)
Parameter
0[h]
1[h]
7[h]
S0(44pin)
S0IN
CAT1_Byte7_bit6
DHD output
VRI input
-
S1(46pin)
S1IN
CAT1_Byte7_bit7
DVD output
HRI input
-
S2(47pin) S2SEL CAT1_Byte8_bit0-2
FSC comparison
output
DHD output
LALT IN
S3(48pin) S3SEL CAT1_Byte8_bit3-5
DHD output
DVD output
Analog shift FSC
input
S4(49pin) S4SEL CAT1_Byte8_bit6-7
External EVR
chip select output
FSC output
VD output
* For information on other settings, see “12.6 Sync Signal Output Setting Method”.