Z86E30 Datasheet, PDF (58/66 Pages) Zilog, Inc. – Z8 4K OTP Microcontroller

Z86E30/E31/E40
Z8 4K OTP Microcontroller
Z8 CONTROL REGISTER DIAGRAMS
Zilog
R240
D7 D6 D5 D4 D3 D2 D1 D0
Reserved (Must be 0)
Figure 45. Reserved
R241 TMR
D7 D6 D5 D4 D3 D2 D1 D0
Default After Reset = 00H
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)
TOUT Modes
00 Not Used*
01 T0 Out
10 T1 Out
11 Internal Clock Out
Figure 46. Timer Mode Register
F1H: Read/Write
R242 T1
D7 D6 D5 D4 D3 D2 D1 D0
T1 Initial Value
(When Written)
(Range: 1-256 Decimal
01-00 HEX)
T1 Current Value
(When Read)
Figure 47. Counter/Timer 1 Register
F2H: Read/Write
R243 PRE1
D7 D6 D5 D4 D3 D2 D1 D0
*Default After Reset
Count Mode
0 T1 Single Pass*
1 T1 Modulo N
Clock Source
1 T1 Internal
0 T1 External Timing Input
(TIN Mode)
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
Figure 48. Prescaler 1 Register
F3H: Write Only
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 49. Counter/Timer 0 Register
F4H; Read/Write
R245 PRE0
D7 D6 D5 D4 D3 D2 D1 D0
Count Mode
0 T1 Single Pass
1 T1 Modulo N
Reserved (Must be 0)
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
Figure 50. Prescaler 0 Register
F5H: Write Only
58
PRELIMINARY
DS97Z8X0500