Z86L972 Datasheet, PDF (79/91 Pages) Zilog, Inc. – Low-Voltage Microcontrollers

Z86L972/Z86L973/Z86L974
Low-Voltage Microcontrollers
72
T8 High Load Register (TC8H)
The T8 High Load Register, as described in Table 41, is loaded with the counter
value necessary to keep the T8_Out signal in the high state for the required time.
Table 41. TC8H Register (Group/Bank 0Dh, Register 5)
Bit
7
6
5
Bit/Field T8_Level_HI
R/W
R/W R/W R/W
Reset
0
0
0
R = Read, W = Write, X = Indeterminate
Bit
Position Bit/Field
R/W
76543210 T₈ Level
R/W
High Value
4
R/W
0
Value
Data
3
2
1
0
R/W R/W R/W R/W
0
0
0
0
Description
Duration that T8_Out remains High
T8 Low Load Register (TC8L)
The T8 Low Load Register, as described in Table 42, is loaded with the counter
value necessary to keep the T8_Out signal in the low state for the required time.
Table 42. TC8L Register (Group/Bank 0Dh, Register 4)
Bit
7
6
5
Bit/Field T8_Level_LO
R/W
R/W R/W R/W
Reset
0
0
0
R = Read, W = Write, X = Indeterminate
Bit
Position Bit/Field
R/W
76543210 T₈ Level
R/W
Low Value
4
R/W
0
Value
Data
3
2
1
0
R/W R/W R/W R/W
0
0
0
0
Description
Duration that T8_Out remains Low
PS010504-1002
PRELIMINARY