6-13
MSM66591/ML66592 User's Manual
Chapter 6 Port Functions
6
6.5
Port 2 (P2)
Port 2 (P2_0–P2_7) is an 8-bit I/O port. Input or output can be specified for each bit by
the Port 2 mode register (P2IO).
In addition to the port function, a secondary function (real-time output, etc.) is assigned
to Port 2. Port function/secondary function is selected by the Port 2 secondary function
control register (P2SF).
If the
OE
pin (pin 71) is in "L" level when Port 2 is in output status, Port 2 outputs "H" or
"L" level, but if the
OE
pin is in "H" level, Port 2 goes into high impedance status.
Figure 6-8 shows the configuration of the Port 2 data register (P2), the Port 2 mode
register (P2IO), and the Port 2 secondary function control register (P2SF).
P2_7
P2_6
P2_5
P2_4
P2_3
P2_2
P2_1
P2_0
7
6
5
4
3
2
1
0
P2
P2IO7
P2IO6
P2IO5
P2IO4
P2IO3
P2IO2
P2IO1
P2IO0
7
6
5
4
3
2
1
0
P2IO
P2_n = input
0
P2_n = output
1
n = 0–7
RTO11 RTO10
RTO9
RTO8
RTO7
RTO6
RTO5
RTO4
7
6
5
4
3
2
1
0
P2SF
P2_0
0
Flexible timer realtime output 4
1
P2_1
0
Flexible timer realtime output 5
1
P2_2
0
Flexible timer realtime output 6
1
P2_3
0
Flexible timer realtime output 7
1
P2_4
0
Flexible timer realtime output 8
1
P2_5
0
Flexible timer realtime output 9
1
P2_6
0
Flexible timer realtime output 10
1
P2_7
0
Flexible timer realtime output 11
1
Figure 6-8 Configuration of P2, P2IO, and P2SF
Summary of Contents for MSM66591
Page 15: ...Contents 12...
Page 17: ......
Page 18: ...Overview Chapter 1 1...
Page 19: ......
Page 30: ...Description of Pins Chapter 2 2...
Page 31: ......
Page 44: ...CPU Architecture Chapter 3 3...
Page 45: ......
Page 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture...
Page 102: ...CPU Control Functions Chapter 4 4...
Page 103: ......
Page 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions...
Page 112: ...Memory Control Functions Chapter 5 5...
Page 113: ......
Page 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions...
Page 118: ...Port Functions Chapter 6 6...
Page 119: ......
Page 152: ...Output Pin Control Pin OE Chapter 7 7...
Page 153: ......
Page 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE...
Page 156: ...Clock Generation Circuit Chapter 8 8...
Page 157: ......
Page 160: ...Time Base Counter TBC Chapter 9 9...
Page 161: ......
Page 164: ...Watchdog Timer WDT Chapter 10 10...
Page 165: ......
Page 170: ...Flexible Timer FTM Chapter 11 11 11...
Page 171: ......
Page 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM...
Page 214: ...General Purpose 8 Bit Timer Function Chapter 12 12...
Page 215: ......
Page 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function...
Page 224: ...PWM Functions Chapter 13 13...
Page 225: ......
Page 244: ...Baud Rate Generator Functions Chapter 14 14...
Page 245: ......
Page 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions...
Page 264: ...Serial Port Functions Chapter 15 15...
Page 265: ......
Page 348: ...A D Converter Functions Chapter 16 16...
Page 349: ......
Page 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions...
Page 382: ...Transition Detector Functions Chapter 17 17...
Page 383: ......
Page 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions...
Page 388: ...Peripheral Functions Chapter 18 18...
Page 389: ......
Page 392: ...External Interrupt Request Function Chapter 19 19...
Page 393: ......
Page 396: ...Interrupt Request Processing Function Chapter 20 20...
Page 397: ......
Page 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function...
Page 408: ...Bus Port Functions Chapter 21 21...
Page 409: ......
Page 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions...
Page 414: ...Expansion Port Chapter 22 22...
Page 415: ......
Page 420: ...Serial Port with FIFO SCI5 Chapter 23 23...
Page 421: ......
Page 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5...
Page 432: ...RAM Monitor Function Chapter 24 24...
Page 433: ......
Page 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function...
Page 442: ...25 Electrical Characteristics Chapter 25...
Page 443: ......
Page 458: ...Package Dimensions Chapter 26 26...
Page 459: ......
Page 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions...
Page 462: ...Revision History Chapter 27 27...
Page 463: ......
Page 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History...