
Section 9 I/O Ports
Rev. 3.00 Jan 25, 2006 page 214 of 872
REJ09B0286-0300
9.2.4
Pin Functions
The relationship between register setting values and pin functions are as follows in each operating
mode. In the tables, the symbol “—” stands for Don't care.
Extended Mode:
The function of port 2 pins is switched as shown below according to the combination of the
CS256E and IOSE bits in SYSCR, the ADFULLE and CPCSE bits in BCR2 of BSC, and the
P2nDDR bit.
Addresses 13 and 11 in the following table are expressed by the following logical expressions:
Address 13 = 1:
ADFULLE
⋅⋅⋅⋅
CS256E
⋅⋅⋅⋅
IOSE
Address 11 = 1:
ADFULLE
⋅⋅⋅⋅
CS256E
⋅⋅⋅⋅
CPCSE
⋅⋅⋅⋅
IOSE
P2nDDR
0
1
Address 13
—
0
1
Pin function
P27 to P25 input pins
A15 to A13 output pins
P27 to P25 output pins
Notes: n = 7 to 5
Even if P2nDDR = 1 and CPCSE = 1, pins P27 to P25 can be used as output pins only
when IOSE = 1.
P24DDR
0
1
Address 11
—
0
1
Pin function
P24 input pin
A12 output pin
P24 output pin
P23DDR
0
1
Address 11
—
0
1
Pin function
P23 input pin
A11 output pin,
CPREG
output pin
P23 output pin
P2nDDR
0
1
Pin function
P22 to P20 input pins
A10 to A8 output pins, CPA10 to CPA8
output pins
Note: n = 2 to 0
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...