z90102 ZiLOG Semiconductor, z90102 Datasheet - Page 31

• Manufacturer Part Number: z90102
• Description: 40-pin Low-cost Digital Television Controller
• Manufacturer: ZiLOG Semiconductor

Zilog
DS97TEL1902
R241 TMR
BAR CNTRL
BAR POS
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Figure 52. OSD Bar Position Register
Figure 51. OSD Bar Control Register
Figure 53. Timer Mode Register
(F1H: Read/Write)
(Write Only)
(Write Only)
FC07H
FC06H
F1H
Row Address
Reserved (Must be 0)
Red Bar Color
Green Bar Color
Blue Bar Color
Bar Color Enable
Bar Column Position
Reserved (Must be 0)
0 - No Function
1 - Load T1
0 - Disable T1 Count
1 - Enable T1 Count
TIN Modes
00 External Clock Input
01 Gate Input
10 Trigger Input
11 Trigger Input
0 - No Function
1 - Load T0
0 -Disable T0 Count
1 -Enable T0 Count
TOUT Modes
00 Not Used
01 T0 Out
10 T1 Out
11 Internal Clock Out
(Non-retriggerable)
(Retriggerable)
R242 T1
D7 D6 D5 D4 D3 D2 D1 D0
R243 PRE1
ROW_ ATTR
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
* Default After Reset
40-Pin Low-Cost Digital Television Controller
Figure 55. Counter Timer 1 Register
Figure 54. ROW_ATTR Register
Figure 56. Prescaler 1 Register
FD00H,FD20H,FD40H,
FD60H,FD80H,FDA0H
(F1H: Read/Write)
(F3H: Write Only)
(Write Only)
F3H
F2H
Count Mode
Clock Source
0 T1 External Timing Input*
Prescaler Modulo
0 T1 Single Pass*
1 T1 Modulo N
1 T1 Internal
(Range: 1-64 Decimal
Z90102/90103/90104
01-00 Hex)
(TIN) Mode
Row Background Color
Red
Green
Blue
Row Background On-Off
Character Color
Red
Green
Blue
Reserved (Must be 0)
0 Off
1 On
T1 Initial Value
(When Written)
(Range: 1-256 Decimal
01-00 Hex)
T1 Current Value
(When Read)
31
1