Datasheet

ADuC814
Rev. A | Page 40 of 72
INTVAL User Time Interval Select Register
Function User code writes the required time interval to this register. When the 8-bit interval counter is equal to the time
interval value loaded in the INTVAL SFR, the TII bit (TIMECON.2) is set and generates an interrupt if enabled.
(See the IEIP2 SFR description in the Interrupt System section.)
SFR Address A6H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 255 decimal
HTHSEC Hundredths Seconds Time Register
Function This register is incremented in 1/128 second intervals once TCEN in TIMECON is active. The HTHSEC SFR
counts from 0 to 127 before rolling over to increment the SEC time register.
SFR Address A2H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 127 decimal
SEC Seconds Time Register
Function This register is incremented in 1-second intervals once TCEN in TIMECON is active. The SEC SFR counts from
0 to 59 before rolling over to increment the MIN time register.
SFR Address A3H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 59 decimal
MIN Minutes Time Register
Function This register is incremented in 1-minute intervals once TCEN in TIMECON is active. The MIN SFR counts
from 0 to 59 before rolling over to increment the HOUR time register.
SFR Address A4H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 59 decimal
HOUR Hours Time Register
Function This register is incremented in 1-hour intervals once TCEN in TIMECON is active. If the TFH bit (TIMECON.6)
is set to 1 the HOUR SFR counts from 0 to 23 before rolling over to 0. If the TFH bit is set to 0, the HOUR SFR
counts from 0 to 255 before rolling over to 0.
SFR Address A5H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 23 decimal