m5m51016btp Renesas Electronics Corporation., m5m51016btp Datasheet - Page 275

• Manufacturer Part Number: m5m51016btp
• Description: Renesas 16-bit Single-chip Microcomputer M16c Family / M16c/20 Series
• Manufacturer: Renesas Electronics Corporation.

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.14.6. Set-up procedure of key-input interrupt
Setting key input mode register
Setting port P10 direction register
Setting pull-up control register 2
b7
b7
Setting key input interrupt control register
b7
b7
1 1
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1 1
0 0
1
0 0
1
0
1
0 0
0 0
b0
b0
b0
b0
P10
P10 Key-input edge select bit 0
P10 Key-input edge select bit 1
P10
P10
P10
P10
0 : Input mode (Functions as an input port)
1 : Output mode (Functions as an output port)
Key input mode register [Address 03F9
KUPM
Port P10 direction register [Address 03F6
PD10
Pull-up control register 2 [Address 03FE
PUR2
Key input interrupt control register [Address 0041
KUPIC
Interrupt priority level select bit
Interrupt request bit
b1 b0
1 : Pulled high
0 0 : Falling edge
1 : Enabled
1 : Enabled
1 : Disabled
1 : Disabled
b2 b1 b0
0 0 0 : Level 0 (interrupt disabled)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
0
0
2
4
6
to P10
and P10
and P10
and P10
and P10
0 : Interrupt not requested
3
1
3
5
7
Key-input enable bit
Key-input enable bit
Key-input enable bit
Key-input enable bit
16
16
]
16
]
]
16
]
2. Key-Input Interrupt