Datasheet

ADuC841/ADuC842/ADuC843
Rev. 0 | Page 56 of 88
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.
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. The HOUR SFR
counts from 0 to 23 before rolling over to 0.
SFR Address A5H
Power-On Default 00H
Bit Addressable No
Valid Value 0 to 23 decimal