Section 20 I/O Ports
Rev. 2.00 Mar 09, 2006 page 795 of 906
REJ09B0292-0200
Section 20 I/O Ports
20.1
Overview
This chip has two ports, designated A and B. Port A is a 14-bit input/output port, and port B is a
16-bit input/output port. The port pins are multiplexed as general input/output and other functions.
(The function of multiplexed multiplex pins is selected by means of the pin function controller
(PFC).) Ports A and B are each provided with a data register for storing pin data.
20.2
Port A
Port A is an input/output port with the 14 pins shown in figure 20.1. Of the 14 pins, the CKPO pin
has no port data register bit, and is multiplexed as an internal clock pin.
PA13 (input/output) / SRCK0 (input)
PA12 (input/output) / SRS0
(input)
PA11 (input/output) / SRXD0 (input)
PA10 (input/output) / STCK0 (input)
PA9 (input/output)
/
STS0 (input/output)
PA8 (input/output) / STXD0
(output)
WDTOVF
*
(output) / PA7
(input/output)
PA6 (input/output) / FTCI
(input)
PA5 (input/output) / FTI
(input)
PA4 (input/output) / FTOA
(output)
CKPO (output)
/ FTOB
(output)
PA2 (input/output)
/
LNKSTA
(input)
PA1 (input/output)
/
EXOUT (output)
PA0 (input/output)
Port A
Note:
*
The fact that the
WDTOVF
pin is set to output mode after a reset
must be noted when it is to be used as a general I/O port (PA7).
Figure 20.1 Port A
Содержание SH7616
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Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...