參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機(jī)
文件頁數(shù): 54/172頁
文件大?。?/td> 1193K
代理商: M37640E8
2-42
7/9/98
Input and Output Ports
7600 Series
M37640E8-XXXF Preliminary Specification
Mitsubishi Microcomputers
2.7.2
Port Control Register
This device is equipped with a port control register to turn on and off the slew rate control and to
control the input levels for port 2 and the MBI pins. (see Figure 2-50.).
Figure 2-50. Port Control Register
2.7.3
Port 2 Pull-up Control Register
This device is equipped with internal pull-ups on Port 2 that can be enabled by software. Each bit of
the pull-up control register controls a corresponding pin of Port 2. The pull-up control register pulls up
the port when the port is in input mode. The value of the pull-up control register has no effect when
the port is in output mode.
Figure 2-51. Pull-up Control Register
MSB
7
LSB
0
PTC4
PTC3
PTC2
PTC1
PTC0
PTC0
Slew Rate Control Bit Ports 0-3 (bit 0)
0: Disabled
1: Enabled
Slew Rate Control Bit Port 4 (bit 1)
0: Disabled
1: Enabled
Slew Rate Control Bit Port 5 (bit 2)
0: Disabled
1: Enabled
Slew Rate Control Bit Port 6 (bit 3)
0: Disabled
1: Enabled
Slew Rate Control Bit Port 7 (bit 4)
0: Disabled
1: Enabled
Slew Rate Control Bit Port 8 (bit 5)
0: Disabled
1: Enabled
Port 2 Input Level Select Bit (bit 6)
0: Reduced VIHL level input
1: CMOS level input
Master Bus Input Level Select Bit (bit 7)
0: CMOS level input
1: TTL level input
PTC1
PTC2
PTC3
PTC4
PTC5
PTC6
PTC7
Access: R/W
Reset: 00
16
PTC7
PTC6
PTC5
Address: 0010
16
PUP2
0
Pull-up Control for Port 2 (bit 0)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 1)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 2)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 3)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 4)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 5)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 6)
0: Disabled
1: Enabled
Pull-up Control for Port 2 (bit 7)
0: Disabled
1: Enabled
PUP2
1
PUP2
2
PUP2
3
PUP2
4
PUP2
5
PUP2
6
PUP2
7
MSB
7
LSB
0
PUP2
4
PUP2
3
PUP2
2
PUP2
1
PUP2
0
Access: R/W
Reset: 00
16
PUP2
7
PUP2
6
PUP2
5
Address: 0012
16
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