28-8
MB86R02 ‘Jade-D’ Hardware Manual V1.64
28.6.5 Interrupt ID register (URTxIIR)
Address
ch0
:
FFF 08h
ch1
:
FFF 08h
ch2
:
FFF 08h
ch3
:
FFF 08h
ch4
:
FFF 08h
ch5
:
FFF 08h
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
(Reserved)
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Initial value
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
(Reserved)
FIFO
ST1
FIFO
ST0
(Reserved)
ID2
ID1
ID0
NINT
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Initial
valu
e
X
X
X
X
X
X
X
X
1
1
0
0
0
0
0
1
Bit No.
Bit name
Function
31:8
Unused
Reserved bit (input "0" at writing)
7:6
FIFO1:0
FIFO status
Fixed to "11"
5:4
"00"
3:0
ID2:0, NINT
Interrupt setting
0001: No interrupt
0110: Reception line status
(1) Top priority
0100: Reception data existed
(2)
1100: Time-out
(2)
0010: Transmission FIFO is empty (3)
0000: Modem status
(4)
* Bit7:0 = C1h, after the reset
* Numerical value in ( ) is priority level
When character time-out interrupt occurs with having received data, ID2:0, NINT is changed from 0100 to
1100.
Interrupt signal (INTR) is cleared by the following operation.
Priority level:
(1) Read Line status register (LSR)
(2) Read reception FIFO
(3) Read Interrupt ID register (IIR) or write to transmission FIFO
(4) Read Modem status register (MSR)
Summary of Contents for MB86R02
Page 24: ...MB86R02 Jade D Hardware Manual V1 64 ...
Page 76: ...3 2 MB86R02 Jade D Hardware Manual V1 64 Figure 3 1 Memory map 1 ...
Page 77: ...3 3 MB86R02 Jade D Hardware Manual V1 64 Figure 3 2 Memory map 2 ...
Page 167: ...8 8 MB86R02 Jade D Hardware Manual V1 64 ...
Page 214: ...11 7 MB86R02 Jade D Hardware Manual V1 64 15 16 cycles initial value ...
Page 497: ...18 139 MB86R02 Jade D Hardware Manual V1 64 VSYNC is output 1 dot clock faster than HSYNC ...
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Page 682: ...22 2 MB86R02 Jade D Hardware Manual V1 00 FUJITSU PROPRIETARY AND CONFIDENTIAL ...
Page 811: ...29 24 MB86R02 Jade D Hardware Manual V1 64 ...