Section 9 I/O Ports
Rev. 3.00 Jan 25, 2006 page 215 of 872
REJ09B0286-0300
Single-Chip Mode:
The function of port 2 pins is switched as shown below according to the combination of the OEm
bit in PWOERB of PWM and the P2nDDR bit.
P2nDDR
0
1
OEm
—
0
1
Pin function
P27 to P20 input pins
P27 to P20 input pins
PW15 to PW8 output pins
Notes: n = 7 to 0
m = 15 to 8
9.2.5
Port 2 Input Pull-Up MOS
Port 2 has a built-in input pull-up MOS that can be controlled by software. This input pull-up
MOS can be used regardless of the operating mode. Table 9.3 summarizes the input pull-up MOS
states.
Table 9.3
Port 2 Input Pull-Up MOS States
Reset
Hardware Standby
Mode
Software Standby Mode
In Other
Operations
Off
Off
On/Off
On/Off
Legend:
Off: Always
off.
On/Off: On when P2DDR = 0 and P2PCR = 1; otherwise off.
9.3
Port 3
Port 3 is an 8-bit I/O port. Port 3 pins also function as a bidirectional data bus, CompactFlash
bidirectional data bus, wake-up event input, and MCIF input/output pins. Port 3 functions change
according to the operating mode. Port 3 has the following registers.
•
Port 3 data direction register (P3DDR)
•
Port 3 data register (P3DR)
•
Port 3 pull-up MOS control register (P3PCR)
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...