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Section 23 I/O Ports
Rev. 4.00 Sep. 14, 2005 Page 843 of 982
REJ09B0023-0400
Section 23 I/O Ports
This LSI has nine 16-bit ports (ports A to J). All port pins are multiplexed with other pin functions
(the pin function controller (PFC) handles the selection of pin functions). Each port has a data
register which stores data for the pins.
23.1 Port
A
Port A is a 15-bit input/output port with the pin configuration shown in figure 23.1. Each pin is
controlled by the port A control register (PACR) in the PFC.
PTA14 (input/output)/A25 (output)
Port A
PTA13 (input/output)/A24 (output)
PTA12 (input/output)/A23 (output)
PTA11 (input/output)/A22 (output)
PTA10 (input/output)/A21 (output)
PTA9 (input/output)/A20 (output)
PTA8 (input/output)/A19 (output)
PTA7 (input/output)/
RASU
(output)
PTA6 (input/output)/
RASL
(output)
PTA5 (input/output)/
CASU
(output)
PTA4 (input/output)/
CASL
(output)
PTA3 (input/output)/
CS3
(output)
PTA2 (input/output)/
CS2
(output)
PTA1 (input/output)/CKE (output)
PTA0 (input/output)/A0 (output)
Figure 23.1 Port A
23.1.1 Register
Description
Port A has the following register.
•
Port A data register (PADR)
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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