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M16C6KA_15 Datasheet, PDF (148/270 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description | |||
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M16C/6KA Group
Serial Interrupt Output
q IRQ request register i IRQRi (i=1-4)
The serial interrupt request of Channel 1-4 is set by software, or asserting frame is selected.
â¢IRQ request bit IR
Setting the bit to â1â generates the serial interrupt request.
By setting the OBFj sync enable bit (bit2-4, j=1-3) of the serial interrupt control register0 to â1â, the
value of IR is the same as that of OBFj, which is the host bus interface internal signal. When the
internal signal OBFj is â1â, the serial interrupt is generated.
IR is cleared to â0â by writing â0â in software.
IR can not be cleared to â0â by software when the internal signal OBFj is â1â if OBFj sync enable
bit is set to â1â.
q IRQ select bit IS0-4
The asserting frame is selected.
IRQ request register1-4
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
IRQR1
IRQR2
IRQR3
IRQR4
Address
02B316
02B416
02B516
02B616
Bit symbol
Bit name
IS0
Frame select bit
IS1
IS2
IS3
IS4
When reset
0016
0016
0016
0016
Function
b4b3b2b1b0 IRQ Frame
0 0 0 0 0 : No SERIRQ output
0 0 0 0 1 : Frame 1
0 0 0 1 0 : Frame 2
0 0 0 1 1 : Frame 3
0 0 1 0 0 : Frame 4
0 0 1 0 1 : Frame 5
0 0 1 1 0 : Frame 6
0 0 1 1 1 : Frame 7
0 1 0 0 0 : Frame 8
0 1 0 0 1 : Frame 9
0 1 0 1 0 : Frame 10
0 1 0 1 1 : Frame 11
0 1 1 0 0 : Frame 12
0 1 1 0 1 : Frame 13
0 1 1 1 0 : Frame 14
0 1 1 1 1 : Frame 15
1 0 0 0 0 : Canât select
1 0 0 0 1 : Canât select
1 0 0 1 0 : Canât select
1 0 0 1 1 : Canât select
1 0 1 0 0 : Canât select
1 0 1 0 1 : Extend Frame 0
1 0 1 1 0 : Extend Frame 1
1 0 1 1 1 : Extend Frame 2
1 1 0 0 0 : Extend Frame 3
1 1 0 0 1 : Extend Frame 4
1 1 0 1 0 : Extend Frame 5
1 1 0 1 1 : Extend Frame 6
1 1 1 0 0 : Extend Frame 7
1 1 1 0 1 : Extend Frame 8
1 1 1 1 0 : Extend Frame 9
1 1 1 1 1 : Extend Frame 10
RW
IR
IRQ request bit
0: No IRQ request
1: IRQ request
Nothing is assigned.
Meaningless in writing, â0â in reading.
Fig.SI-3 Configuration of IRQ request register1-4
Rev.1.00 Jul 16, 2004 page 146 of 266
REJ03B0100-0100Z
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