SDA5523 Micronas Semiconductor, SDA5523 Datasheet - Page 125

• Manufacturer Part Number: SDA5523
• Description: SDA55xx TVText Pro
• Manufacturer: Micronas Semiconductor

DATA SHEET
Table 3–4: SFR register description, continued
Micronas
Name
SND_V[2:0]
SND_H[2:0]
WDT_rel
WDTrel[7:0]
WDT_ctrl
WDT_in
WDT_start
WDT_narst
WDT_rst
WDT_refresh
WDT_ref
WDT_tmr
WTmr_strt
WTmr_ov
WDT_low
WDTlow[7:0]
Sub
hDF[5:3]
hDF[2:0]
hB1
hB1[7:0]
hB2
hB2[7]
hB2[6]
hB2[5]
hB2[4]
hB3
hB3[7]
hB3[6]
hB3[5]
hB3[4]
hB4
hB4[7:0]
Dir
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
h00
0
h00
0
0
0
0
h00
0
0
0
0
h00
0
Sept. 10, 2004; 6251-556-3DS
0..1
Range
0..255
0..1
0..1
0..1
0..1
0..1
0..1
0..1
0..255
WATCHDOG
Function
Slicing Level Vertical Sync-Pulses (slave mode/sandcastle input)
To fit the requirements of various applications the input circuit of the
sandcastle decoder is free programmable. The slicing levels for the
vertical pulses can be varied in a range from 0.67 V up to 1.83 V in
steps of about 0.16 V:
000: Vertical Slicing Level set to 0.67 V.
001: Vertical Slicing Level set to 0.83 V.
010: Vertical Slicing Level set to 1.00 V.
011: Vertical Slicing Level set to 1.17 V.
100: Vertical Slicing Level set to 1.33 V.
101: Vertical Slicing Level set to 1.50 V.
110: Vertical Slicing Level set to 1.67 V.
111: Vertical Slicing Level set to 1.83 V.
These are nominal values. They may also differ with supply voltage.
Slicing Level Horizontal Sync-Pulses (slave mode/sandcastle input)
To fit the requirements of various applications the input circuit of the
sandcastle decoder is free programmable. The slicing levels for the
horizontal pulses can be varied in a range from 1.33 V up to 2.50 V in
steps of about 0.16 V:
000: Horizontal Slicing Level set to 1.33 V
001: Horizontal Slicing Level set to 1.50 V
010: Horizontal Slicing Level set to 1.67 V
011: Horizontal Slicing Level set to 1.83 V
100: Horizontal Slicing Level set to 2.00 V
101: Horizontal Slicing Level set to 2.17 V
110: Horizontal Slicing Level set to 2.33 V
111: Horizontal Slicing Level set to 2.50 V
These are nominal values. They may also differ with supply voltage.
Watchdog Reload
Reload value of the watchdog timer (also in timer-mode), is loaded in
the upper 8 bit of the watchdog counter at WDT-start and ñreload and
also at timer start.
Watchdog Control
Watchdog Control
Watchdog Control
Watchdog Control
Watchdog Control
Watchdog Refresh
Watchdog Refresh
Watchdog Refresh
Watchdog Refresh
Watchdog Refresh
WDT Timer Low
Counter value of the watchdog timer; low byte.
SDA 55xx
125