z90102 ZiLOG Semiconductor, z90102 Datasheet - Page 17

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

Zilog
Program Memory. The program ROM size is 6 KB (Figure
14). The IRQ vector table is located in the lower address
space. The vector address is fetched after the correspond-
ing interrupt and program control is passed to the specified
DS97TEL1902
0000
0001
0002
0003
0004
0005
0006
0007
0008
0009
000A
000B
17FF
1800
FCFF
FDB4
FDB5
Address
000C
FBFF
FC32
FC33
FD00
FC00
FFFF
Hex
¯
¯
¯
¯
¯
¯
VSYNC IRQ1 (High Byte)
VSYNC IRQ1 (Low Byte)
On-Chip Program ROM
P31 IRQ2 (High Byte)
P30 IRQ3 (High Byte)
P31 IRQ2 (Low Byte)
P30 IRQ3 (Low Byte)
Reset Start Address
Memory Mapped I/O
T0 IRQ4 (High Byte)
T0 IRQ4 (Low Byte)
T1 IRQ5 (High Byte)
T1 IRQ5 (Low Byte)
Video Refresh RAM
IRQ0 (High Byte)
IRQ0 (Low Byte)
(6 KByte)
Reserved
Reserved
Reserved
Figure 14. Program Memory
PWM11 8-Bit Register (PWM11)
Horizontal Position (HOR_POS)
Bar Line Control (BAR_CNTRL)
PWM10 8-Bit Register (PWM10)
Display Attribute (DISP_ATTR)
PWM Output Port (PWM_OUT)
Vertical Position (VERT_POS)
PWM6 6-Bit Register (PWM6)
PWM7 6-Bit Register (PWM7)
PWM8 6-Bit Register (PWM8)
PWM9 8-Bit Register (PWM9)
PWM1 High 6-Bit (PWM1_HI)
vector address. IRQ1 vector is fixed to VSYNC interrupt re-
quest and occurs at the leading edge of the filtered VSYNC
input. Program memory start at address 000CH after re-
set.
PWM1 Low 8-Bit (PWM_LO)
OSD Control (OSD_CNTRL)
Row Space (ROW_SPACE)
Fade Position (FADE_POS)
PWM Mode (PWM_MODE)
Port 6 Input Port (PORT6)
Bar Position (BAR_POS)
Reserved
Reserved
Reserved
Reserved
40-Pin Low-Cost Digital Television Controller
Address
Hex
FC00
FC01
FC02
FC03
FC04
FC05
FC06
FC07
FC10
FC11
FC12
FC13
FC14
FC15
FC16
FC17
FC18
FC19
FC1A
FC1B
FC1C
FC1D
FC1E
FC1F
FC30
FC31
FC32
Z90102/90103/90104
Write
Only
17
1