Z86E61 Zilog., Z86E61 Datasheet - Page 31

• Manufacturer Part Number: Z86E61
• Description: CMOS Z8 16K/32K EPROM MICROCONTROLLER
• Manufacturer: Zilog.

Z8 CONTROL REGISTER DIAGRAMS
R240 SIO
R241 TMR
R242 T1
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 30. Counter/Timer 1 Register
Figure 29. Timer Mode Register
Figure 28. Serial I/O Register
(F0
(F1
(F2
H
H
H
: Read/Write)
: Read/Write)
: Read/Write)
0
1
T
00
01
10
11
T1 Initial Value
T1 Current Value
0
1
0
1
0
1
Serial Data (D0 = LSB)
T
00
01
10
11
IN
(Non-retriggerable)
(Retriggerable)
OUT
No Function
Load T1
Modes
No Function
Load T0
Disable T0 Count
Enable T0 Count
Disable T1 Count
Enable T1 Count
(When Written)
(Range: 1-256 Decimal
01-00 HEX)
(When Read)
External Clock Input
Gate Input
Trigger Input
Trigger Input
Not Used
T0 Out
T1 Out
Internal Clock Out
Modes
P R E L I M I N A R Y
R243 PRE1
R244 T0
R245 PRE0
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 32. Counter/Timer 0 Register
Figure 31. Prescaler 1 Register
Figure 33. Prescaler 0 Register
(F4
(F3
(F5
H
H
H
: Read/Write)
: Write Only)
: Write Only)
Clock Source
Count Mode
Prescaler Modulo
Count Mode
Reserved (Must be 0)
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
T0 Initial Value
T0 Current Value
0
1
(Range: 1-64 Decimal
01-00 HEX)
(When Written)
(Range: 1-256 Decimal
01-00 HEX)
(When Read)
1
0
0
1
T0 Single Pass
T0 Modulo N
T1 Internal
T1 External Timing Input
T1 Single Pass
T1 Modulo N
(T
IN
WITH
) Mode
Z86E61/E63 Z8
16K/32K EPROM
®
MCU
31