III PERIPHERAL BLOCK: INPUT/OUTPUT PORTS
B-III-9-22
EPSON
S1C33L03 FUNCTION PART
SMPK13–SMPK10: FPK1 input mask (D[3:0]) / FPK1 input mask register (0x402CF)
SMPK04–SMPK00: FPK0 input mask (D[4:0]) / FPK0 input mask register (0x402CE)
Sets conditions for key-input interrupt generation (interrupt enabled/disabled).
Write "1": Interrupt enabled
Write "0": Interrupt disabled
Read: Valid
SMPK is an input mask register for each key-input interrupt system. Interrupts for bits set to "1" are enabled, and
interrupts for bits set to "0" are disabled. A change in the state of an input pin that is disabled from interrupt does
not affect interrupt generation.
At cold start, SMPK is set to "0" (interrupt disabled). At hot start, SMPK retains its state from prior to the initial
reset.
PP0L2–PP0L0: Port input 0 interrupt level (D[2:0]) / Port input 0/1 interrupt priority register (0x40260)
PP1L2–PP1L0: Port input 1 interrupt level (D[6:4]) / Port input 0/1 interrupt priority register (0x40260)
PP2L2–PP2L0: Port input 2 interrupt level (D[2:0]) / Port input 2/3 interrupt priority register (0x40261)
PP3L2–PP3L0: Port input 3 interrupt level (D[6:4]) / Port input 2/3 interrupt priority register (0x40261)
PP4L2–PP4L0: Port input 4 interrupt level (D[2:0]) / Port input 4/5 interrupt priority register (0x4026C)
PP5L2–PP5L0: Port input 5 interrupt level (D[6:4]) / Port input 4/5 interrupt priority register (0x4026C)
PP6L2–PP6L0: Port input 6 interrupt level (D[2:0]) / Port input 6/7 interrupt priority register (0x4026D)
PP7L2–PP7L0: Port input 7 interrupt level (D[6:4]) / Port input 6/7 interrupt priority register (0x4026D)
PK0L2–PK0L0: Key input 0 interrupt level (D[2:0]) / Key input interrupt priority register (0x40262)
PK1L2–PK1L0: Key input 1 interrupt level (D[6:4]) / Key input interrupt priority register (0x40262)
Sets the priority level of the input interrupt.
PPxL and PKxL are interrupt priority registers corresponding to each port-input interrupt and key-input interrupt,
respectively.
The priority level can be set for each interrupt group in the range of 0 to 7.
At initial reset, these registers becomes indeterminate.
EP3–EP0: Port input 3–0 interrupt enable (D[3:0]) /
Key input, port input 0–3 interrupt enable register (0x40270)
EP7–EP4: Port input 7–4 interrupt enable (D[5:2]) /
Port input 4–7, clock timer, A/D interrupt enable register (0x40277)
EK1, EK0: Key input 1, 0 interrupt enable (D[5:4]) /
Key input, port input 0–3 interrupt enable register (0x40270)
Enables or disables the generation of an interrupt to the CPU.
Write "1": Interrupt enabled
Write "0": Interrupt disabled
Read: Valid
EP and EK are interrupt enable bits corresponding to the port-input interrupt and the key-input interrupt,
respectively. Interrupts for input systems set to "1" are enabled, and interrupts for input systems set to "0" are
disabled.
At initial reset, these bits are set to "0" (interrupt disabled).
Summary of Contents for CMOS 32-Bit Single Chip Microcomputer S1C33L03
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