
I-82
EPSON
S1C60N08 TECHNICAL HARDWARE
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Interrupt and HALT)
ETI32, ETI8, ETI2: Interrupt mask registers (2E8HD0–D2)
TI32, TI8, TI2: Interrupt factor flags (2E9HD0–D2)
See Section 4.9, "Clock Timer".
EISWIT0, EISWIT1: Interrupt mask registers (2E6HD0–D1)
SWIT0, SWIT1: Interrupt factor flags (2EAHD0–D1)
See Section 4.10, "Stopwatch Timer".
EISIO: Interrupt mask register (2F2HD0)
ISIO: Interrupt factor flag (2F3HD0)
See Section 4.7, "Serial Interface".
KCP00–KCP03: Input comparison registers (2E4H)
EIK00–EIK03: Interrupt mask registers (2E5H)
IK0: Interrupt factor flag (2EAHD2)
See Section 4.4, "Input Ports".
KCP10: Input comparison register (2E7HD1)
EIK10: Interrupt mask register (2E7HD2)
IK1: Interrupt factor flag (2EAHD3)
See Section 4.4, "Input Ports".
EIK20–EIK23: Interrupt mask registers (2F5H)
IK2: Interrupt factor flag (2F3HD1)
See Section 4.4, "Input Ports".
4.16.5 Programming notes
(1) When the interrupt mask register (EIK) is set to "0", the interrupt factor flag (IK) of the input port
cannot be set even though the terminal status of the input port has changed.
(2) The interrupt factor flags of the clock timer, stopwatch timer and serial interface (TI, SWIT, ISIO) are
set when the timing condition is established, even if the interrupt mask registers (ETI, EISWIT, EISIO)
are set to "0".
(3) Read out the interrupt factor flags only in the DI status (interrupt flag = "0"). If read-out is performed
in the EI status (interrupt flag = "1") a malfunction will result.
(4) Writing to the interrupt mask register only in the DI status (interrupt flag = "0"). Writing to the
interrupt mask register while in the EI status (interrupt flag = "1") may cause mulfunction.