HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 675

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

17.2
1. In this LSI, the same function is available as a multiplexed function on multiple pins. This
Table 17.15 Transmit Forms of Input Functions Allocated to Multiple Pins
Note:
2. When the port input is switched from a low level to the DREQ or the IRQ edge for the pins
3. Do not set functions other than those specified in tables 17.13 and 17.14. Otherwise, correct
4. When pin functions are selected, set the port I/O registers (PBIOR and PDIORL) after setting
Product
SH7144
SH7145
approach is intended to increase the number of selectable pin functions and to allow the easier
design of boards. If two or more pins are specified for one function, however, there are two
cautions shown below.
⎯ When the pin function is input
⎯ When the pin function is output
that are multiplexed with input/output and DREQ or IRQ, the corresponding edge is detected.
operation cannot be guaranteed.
the port control registers (PBCR1, PBCR2, PDCRL1, and PDCRL2).
However, when selecting pin functions that are multiplexed with port A, port C, PD31 to PD16
of port D, and port E, no strict attention is required in setting the order of port control registers
(PACRH, PACRL1, PACRL2, PCCR, PDCRH1, PDCRH2, PECRL1, and PECRL2) and port
I/O registers (PAIORH, PAIORL, PCIOR, PDIORH, and PEIORL).
Signals input to several pins are formed as one signal through OR or AND logic and the
signal is transmitted into the LSI. Therefore, a signal that differs from the input signals may
be transmitted to the LSI depending on the input signals in other pins that have the same
functions. Table 17.15 shows the transmit forms of input functions allocated to several
pins. When using one of the functions shown below in multiple pins, use it with care of
signal polarity considering the transmit forms.
OR type: Signals input to several pins are formed as one signal through OR logic and the
AND type: Signals input to several pins are formed as one signal through AND logic and
Each selected pin can output the same function.
*
Usage Notes
F-ZTAT version only
signal is transmitted into the LSI.
the signal is transmitted into the LSI.
OR Type
SCK3, RXD3
SCK3, RXD3, AUDMD*,
AUDATA0 to AUDATA3*
Rev.4.00 Mar. 27, 2008 Page 631 of 882
AND Type
IRQ0 to IRQ3, DREQ0, DREQ1
IRQ0 to IRQ7, DREQ0, DREQ1,
BREQ, WAIT, ADTRG, AUDRST*,
AUDSYNC*, AUDCK*
17. Pin Function Controller (PFC)
REJ09B0108-0400