HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 1047
HD6417320
Manufacturer Part Number
HD6417320
Description
Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417320.pdf
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29.5
(1)
According to the PC card standard, the attribute memory access time is specified as 600 ns (3.3
V)/300 ns (5 V). Therefore, when this LSI accesses attribute memory, the bus cycle must be
coordinated with the PC card interface timing. In this LSI, the timing can be adjusted by setting
the TED, TEH, and PCW values in the CS6BWCR register, allowing a PC card to be used within
the above frequency ranges.
The common memory access time and I/O access time (based on the (IORD) and (IOWR) signals)
are also similarly specified (see table below), and a PC card must be used within the above ranges
in order to satisfy all these specifications.
(2)
When setting pin function controller pin functions to dedicated PC card use ("other function"), the
disabled state should first be set in the card status change interrupt enable register
(PCC0CSCIER). Also, the card status change register (PCC0CSCR) must be cleared after the
setting has been made. However, this restriction does not apply to the card detection pins (CD1
and CD2).
When changing the card type bit (P0PCCT) in the area 6 general control register (PCC0GCR), the
disabled state should first be set in the card status change interrupt enable register
(PCC0CSCIER). Also, the card status change register (PCC0CSCR) must be cleared after the
setting has been made.
Reason: When PC card controller settings are modified, the functions of PC card pins that
PC Card Space
Attribute memory
Common memory
I/O space (pulse width of
IORD and IOWR)
External Bus Frequency Limit when Using PC Card
Pin Function Control and Card Type Switching
Usage Notes
generate various interrupts change, with the result that unnecessary interrupts may be
generated.
Access Time (5 V Operation)
300 ns
250 ns
165 ns
Rev. 3.00 Jan. 18, 2008 Page 985 of 1458
Section 29
Access Time (3.3 V Operation)
600 ns
600 ns
165 ns
PC Card Controller (PCC)
REJ09B0033-0300
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