Z86318 Datasheet, PDF (22/26 Pages) Zilog, Inc. – Z8 MCU 8-BIT MICROCONTROLLER

Z86318
Z8^® MCU 8-Bit Microcontroller
Z8 CONTROL REGISTERS
R241 TMR
D7 D6 D5 D4 D3 D2 D1 D0
0 No Function
1 Load T0
0 Disable T0 Count
1 Enable T0 Count
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
(Non-retriggerable)
11 Trigger Input
(Retriggerable)
Reserved (Must be 0)
Figure 19. Timer Mode Register (F1_H:Read/Write)
R242 T1
D7 D6 D5 D4 D3 D2 D1 D0
R244 T0
D7 D6 D5 D4 D3 D2 D1 D0
T0 Initial Value
(When Written)
(Range: 1-256 Decimal
01-00 HEX)
T0 Current Value
(When READ)
Figure 22. Counter Timer 0 Register (F4_H: Read/Write)
R245 PRE0
D7 D6 D5 D4 D3 D2 D1 D0
Count Mode
0 T0 Single Pass
1 T0 Modulo N
Reserved (Must be 0)
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
Figure 23. Prescaler 0 Register (F5_H: Write Only)
T1 Initial Value
(When Written)
(Range 1-256 Decimal
01-00 HEX)
T1 Current Value
(When READ)
Figure 20. Counter Timer 1 Register (F2_H: Read/Write)
R243 PRE1
D7 D6 D5 D4 D3 D2 D1 D0
R246 P2M
D7 D6 D5 D4 D3 D2 D1 D0
P27- P20 I/O Definition
0 Defines Bit as OUTPUT
1 Defines Bit as INPUT
Figure 24. Port 2 Mode Register (F6_H: Write Only)
Count Mode
0 T1 Single Pass
1 T1 Modulo
Clock Source
1 T1 Internal
0 T1 External Timing Input
(TIN) Mode
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
Figure 21. Prescaler 1 Register (F3_H:Write Only)
R247 P3M
D7 D6 D5 D4 D3 D2 D1 D0
0 Port 2 Open-Drain
1 Port 2 Push-Pull
Reserved (Must be 0)
Figure 25. Port 3 Mode Register (F7_H: Write Only)
22
PRELIMINARY