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7477 Datasheet(PDF) 306 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  354 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 306 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
3-12
APPENDIX
3.1 Control registers
Fig. 3.1.22 Structure of Interrupt request register 2
Fig. 3.1.21 Structure of Interrupt request register 1
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 1 (IR1) [Address
B
Name
Function
At reset RW
Interrupt request register 1
0
0 : No interrupt request
1 : Interrupt requested
0
V
Timer 1 interrupt
request bit
1
Timer 2 interrupt
request bit
0
2
Timer 3 interrupt
request bit
0
3
Timer 4 interrupt
request bit
0
4
Serial I/O receive interrupt
request bit
(7477/7478 group)(Note)
?
5
0
0 : No interrupt request
1 : Interrupt requested
0 : No interrupt request
1 : Interrupt requested
0 : No interrupt request
1 : Interrupt requested
0 : No interrupt request
1 : Interrupt requested
V
V
V
!
V
Nothing is allocated for this bit. This is write
disabled bit and is undefined at reading.
Note:
V
:
6
0
7
A-D conversion completion
interrupt request bit
0
0 : No interrupt request
1 : Interrupt requested
0 : No interrupt request
1 : Interrupt requested
V
V
Serial I/O transmit
interrupt request bit
(7477/7478 group)
In the 7470/7471group, nothing is allocated for bit 5. This is write
disabled bit and is undefined at reading.
“0” is set by software, but not “1.”
Serial I/O interrupt request
bit (7470/7471group)
00FC16]
?
b7 b6 b5 b4 b3 b2 b1 b0
Interrupt request register 2 (IR2) [Address
B
Name
Function
At reset RW
Interrupt request register 2
0
0 : No interrupt request
1 : Interrupt requested
0
V
INT0 interrupt request
bit
1
INT1 interrupt request
bit
0
2
CNTR0 or CNTR1
interrupt request bit
0
3
to
7
V
:
?
0 : No interrupt request
1 : Interrupt requested
0 : No interrupt request
1 : Interrupt requested
V
V
!
Nothing is allocated for these bits. There are write
disabled bits and are undefined at reading.
“0” is set by software, but not “1.”
?
00FD16]



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