mpc235 Megawin Technology, mpc235 Datasheet - Page 12

• Manufacturer Part Number: mpc235
• Description: Low-speed Usb Micro-controller
• Manufacturer: Megawin Technology

Interrupt Registers
IRQ enable flag
Program can enable or disable the ability of triggering IRQ through this register.
0: Disable (default “0” at initialization)
1: Enable
USB: USB finished Rx or Tx data
TM0: Timer0 underflow
P3: Falling edge occurs at port 3 input mode
P04, P05: Falling edge occurs at P0.4/P0.5 input mode
IRQ status flag
When IRQ occurs, program can read this register to know which source triggering IRQ.
IRQ clear flag
Program can clear the interrupt event by writing ‘1’ into the corresponding bit.
12
Address
Address
Address
00C1H
00C2H
00C3H
IRQ_CLR
IRQ_EN
IRQ_ST
Name
Name
Name
Bit 7
Bit 7
Bit 7
-
-
-
MPC235 Technical Summary
Bit 6
Bit 6
Bit 6
-
-
-
Bit 5
Bit 5
Bit 5
P05
P05
P05
Bit 4
Bit 4
Bit 4
P04
P04
P04
Bit 3
Bit 3
Bit 3
P3
P3
P3
TM0
TM0
TM0
Bit 2
Bit 2
Bit 2
Bit 1
USB
Bit 1
USB
Bit 1
USB
MEGAWIN
Bit 0
Bit 0
Bit 0
-
-
-
R
R
R
√
√
-
W
W
W
√
√
-