Z87C33 Datasheet, PDF (39/72 Pages) Zilog, Inc. – CMOS Z8® MCU Consumer Controller Processor

Z87C33
CMOS Z8“ MCU Consumer Controller Processor
33
Table 16. Timer Mode Register—TMR F1h/R241 Bank 0h: READ/WRITE
Bit
D7
R/W
R/W
Reset State
0
Note: R = Read, W = Write.
D6 D5
R/W R/W
0
0
D4
R/W
0
D3
R/W
0
D2
D1
D0
R/W R/W R/W
0
0
0
Bit
Position
D7–D6
Bit
Field
T_OUT Mode
D5–D4 T_IN Mode
D3
T1 Count
D2
T1
D1
T0 Count
D0
T0
Reset
R/W State Description
R/W
00 T_OUT Mode
00: Off
01: T0 Output
10: T1 Output
11: Internal Clock Output
R/W
00 T_IN Mode
00: External Clock Input
01: Gate Input
10: Trigger Input (nonretriggerable)
11: Trigger Input (retriggerable)
R/W
0 T1 Count
0: Disable
1: Enable
R/W
0 T1
0: No Function
1: Load T1
R/W
0 T0 Count
0: Disable
1: Enable
R/W
0 T0
0: No Function
1: Load T0
Counter/Timer 1 Register
The Counter/Timer 1 Register, T1, controls timing and counter functions. READ/
WRITE and reset states for bits D7–D0 are listed in Table 17.
Table 17. Counter/Timer 1 Register—T1 F2h/R242 Bank 0h: READ/WRITE
Bit
R/W
D7
D6 D5
D4
D3
D2
D1
D0
R/W R/W R/W R/W R/W R/W R/W R/W
PS015601-1003