Section 8 I/O Ports
Rev. 1.00 Mar. 12, 2008 Page 294 of 1178
REJ09B0403-0100
(7)
Pin Functions
The relationship between the register settings and the pin function is shown below.
(a)
Normal Extended Mode
•
P47 to P44
The pin function is switched as shown below according to the combination of the CS256E and
IOSE bits in SYSCR, the ADFULLE bit in BCR2 of the BSC, and the P4nDDR bit. Address 13 in
the table below is expressed by the following logical expression.
Address 13 = 1:
ADFULLE
•
CS256E
•
IOSE
P4nDDR 0
1
Address 13
X
0
1
Pin
function
P4n input pin
Am output pin
P4n output pin
[Legend] n = 15 to 12, n = 7 to 4, X: Don't care
•
P43 to P40
Port pins 43 to 40 function as bidirectional data bus pins in 16-bit bus extension, and can be used
as general I/O port pins in 8-bit bus extension.
(b)
Address-Data Multiplex Extended Mode
Port pins 47 to 44 are automatically set to function as address bus pins. Port pins 43 to 40 can be
used as general I/O port pins.
Содержание H8S Family
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Страница 152: ...Section 5 Interrupt Controller Rev 1 00 Mar 12 2008 Page 104 of 1178 REJ09B0403 0100...
Страница 206: ...Section 6 Bus Controller BSC Rev 1 00 Mar 12 2008 Page 158 of 1178 REJ09B0403 0100...
Страница 420: ...Section 9 14 Bit PWM Timer PWMX Rev 1 00 Mar 12 2008 Page 372 of 1178 REJ09B0403 0100...
Страница 476: ...Section 12 Watchdog Timer WDT Rev 1 00 Mar 12 2008 Page 428 of 1178 REJ09B0403 0100...
Страница 552: ...Section 14 CRC Operation Circuit CRC Rev 1 00 Mar 12 2008 Page 504 of 1178 REJ09B0403 0100...
Страница 588: ...Section 15 Serial Communication Interface with FIFO SCIF Rev 1 00 Mar 12 2008 Page 540 of 1178 REJ09B0403 0100...
Страница 632: ...Section 17 Synchronous Serial Communication Unit SSU Rev 1 00 Mar 12 2008 Page 584 of 1178 REJ09B0403 0100...
Страница 712: ...Section 18 I2 C Bus Interface IIC Rev 1 00 Mar 12 2008 Page 664 of 1178 REJ09B0403 0100...
Страница 804: ...Section 19 LPC Interface LPC Rev 1 00 Mar 12 2008 Page 756 of 1178 REJ09B0403 0100...
Страница 838: ...Section 20 Ethernet Controller EtherC Rev 1 00 Mar 12 2008 Page 790 of 1178 REJ09B0403 0100...
Страница 964: ...Section 24 RAM Rev 1 00 Mar 12 2008 Page 916 of 1178 REJ09B0403 0100...
Страница 1066: ...Section 25 Flash Memory Rev 1 00 Mar 12 2008 Page 1018 of 1178 REJ09B0403 0100...
Страница 1098: ...Section 26 Boundary Scan JTAG Rev 1 00 Mar 12 2008 Page 1050 of 1178 REJ09B0403 0100...
Страница 1168: ...Section 30 Platform Environment Control Interface PECI Rev 1 00 Mar 12 2008 Page 1120 of 1178 REJ09B0403 0100...
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Страница 1230: ...H8S 2472 Group H8S 2462 Group Hardware Manual...