z90102 ZiLOG Semiconductor, z90102 Datasheet - Page 27

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

Zilog
DTC CONTROL REGISTER DIAGRAMS
Port Registers
DS97TEL1902
P2
D7 D6 D5 D4 D3 D2 D1 D0
P2M
D7 D6 D5 D4 D3 D2 D1 D0
Figure 32. Port 2 Mode Register
Figure 31. Port 2 Register
(Read/Write)
(Write Only)
02H
F6H
Input/Output Port
Input/Output Mode
0 Logic Level 0
1 Logic Level 1
0 Output Mode
1 Input Mode
P3
D7 D6 D5 D4 D3 D2 D1 D0
P6
D7 D6 D5 D4 D3 D2 D1
40-Pin Low-Cost Digital Television Controller
Figure 33. Port 3 Register
Figure 34. Port 6 Register
(P34, P35, P36 Write Only)
(P30, P31 Read Only)
(Read Only)
FC32H
03H
D0
P30 Input Port
Stop-Mode Recovery Input
P31 Input/T1 (input)
P34 Output Port
P35 Output Port
P36 Output/T1, T0 (output)
Reserved
Z90102/90103/90104
Port 6 Input
Port 6 Comparator Input
0 Logic Level 0
1 Logic Level 1
00 GND thru V1
0 1 V1 thru V2
11 V2 thru VCC
27
1