Z86D990 Datasheet, PDF (86/102 Pages) Zilog, Inc. – Low-Voltage Micro controllers with ADC

Z86D990/Z86D991 OTP and Z86L99X ROM
Low-Voltage Microcontrollers with ADC
79
T8 High Load Register (TC8H)
The T8 High Load Register, as described in Table 43, is loaded with the counter
value necessary to keep the T8_Out signal in the high state for the required time.
Table 43. 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 44, is loaded with the counter
value necessary to keep the T8_Out signal in the low state for the required time.
Table 44. 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
PS003807-1002
PRELIMINARY