Rohm LAPIS SEMICONDUCTOR ML620Q503, Руководство пользователя

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ML620Q503/Q504 User's Manual
Chapter 5 Interrupts
FEUL620Q504 5–16
5.2.7 Interrupt Request Register 23 (IRQ23)
Address: 0F01AH
Access: R/W
Access size: 8/16 bit
Initial value: 0000H
7 6 5 4 3 2 1 0
IRQ2 – QUAF0 QUA1 QUA0 QI2C1 QI2C0 QSIOF0 QSIO0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
15 14 13 12 11 10 9 8
IRQ3 QMD0 QVLS QLOSC – – – – –
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
IRQ23 is a special function register (SFR) used to request an interrupt for each interrupt source.
Each IRQ23 request flag is set to "1" regardless of the IE23 and MIE values when an interrupt is generated. In
this case, an interrupt is requested to the CPU when the related flag of the interrupt enable register (IE23) is set to
"1" and the master interrupt enable flag (MIE) is set to "1".
By setting the IRQ23 request flag to "1" by software, an interrupt can be generated.
The corresponding flag of IRQ2 is set to "0" by hardware when the interrupt request is accepted by the CPU.
Description of Bits
•
QSIO0 (bit 0)
QSIO0 is the request flag for the synchronous serial port 0 interrupt (SIO0INT).
QSIO0 Description
0 No request (initial value)
1 Request
•
QSIOF0 (bit 1)
QSIOF0 is the request flag for the synchronous serial port 0 interrupt with FIFO (SIOF0INT).
QSIOF0 Description
0 No request (initial value)
1 Request
•
QI2C0 (bit 2)
QI2C0 is the request flag for the I2C bus 0 interrupt (I2C0INT).
QI2C0 Description
0 No request (initial value)
1 Request